[HN Gopher] Turmeric's unexpected link to lead poisoning in Bang...
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       Turmeric's unexpected link to lead poisoning in Bangladesh
        
       Author : coopernewby
       Score  : 196 points
       Date   : 2023-06-26 16:12 UTC (6 hours ago)
        
 (HTM) web link (stanmed.stanford.edu)
 (TXT) w3m dump (stanmed.stanford.edu)
        
       | MathMonkeyMan wrote:
       | > To mask flawed turmeric, some processors began dusting the
       | roots with lead chromate -- an orange-yellow industrial pigment
       | used to color plastics and furniture.
        
         | londons_explore wrote:
         | I don't really want lead in my plastic or my furniture
         | either...
         | 
         | In fact, I think there would be a good case for simply banning
         | all mining of lead. Nearly all remaining uses of it (bullets,
         | roof flashing, counterweights, car batteries) seem to still
         | have a pretty high risk of contamination of either the
         | environment or the workers who make or recycle products.
        
       | natdempk wrote:
       | See also "Ground Turmeric as a Source of Lead Exposure in the
       | United States":
       | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5415259/
       | 
       | The problem with lead in tumeric seems to extend beyond
       | Bangladesh.
        
         | camgunz wrote:
         | Yeah! I read this maybe a couple years ago and now lead test
         | anything w/ turmeric in it (tea, actual turmeric, etc.) Haven't
         | come up positive yet though, thank goodness.
         | 
         | Can recommend just lead testing things. Test kits are cheap,
         | it's very easy to do, you really want to know if you're
         | eating/drinking lead (especially if you have kids). Also can
         | recommend getting a water filter. It doesn't really fix
         | dishwashing but for drinking or making things w/ water it's
         | very easy -- you can get pretty big tanks where you could
         | conceivably even make a pot of spaghetti and such.
        
           | elzbardico wrote:
           | Where can I find those test kits?
        
             | TedDoesntTalk wrote:
             | Amazon. There are even strips. Now can we trust the
             | manufacturer of the tests themselves given amazons
             | sometimes shitty vendor quality? Who knows.
        
         | CoastalCoder wrote:
         | Yikes.
         | 
         | Are their any trustworthy, mainstream sources of spices in the
         | U.S.?
         | 
         | E.g., if I buy turmeric from Walmart or Whole Foods, can I
         | safely assume that they're monitoring the product streams for
         | lead?
         | 
         | EDIT: I just saw a sibling comment about a company named
         | "American Turmeric". I'm curious about more mainstream sellers,
         | who might possibly monitor other spices as well. I'd prefer to
         | not play whack-a-mole on a spice-by-spice basis.
        
           | dunham wrote:
           | I buy from thespicehouse.com - they seem to be careful, but I
           | haven't inquired about turmeric. I should send them an email.
           | (I prefer them over Penzey's, which is the same family,
           | because they have dried fenugreek leaves.)
        
             | RhodesianHunter wrote:
             | If you don't have or provide any insight into their testing
             | processes, I don't think a recommendation is relevant here.
        
             | EricE wrote:
             | seconded - high quality and friendly service. Hard to ask
             | for more.
        
             | x0x0 wrote:
             | I buy from there too.
             | 
             | Here's their answer and it's disappointing. tl;dr: they
             | import the whole spice and have it ground in the US.
             | 
             | https://www.thespicehouse.com/pages/ingredients-and-
             | allergy-...
             | 
             | forget trusted suppliers; they should be running lab tests
             | on random samples
        
           | LetThereBeLight wrote:
           | Burlap and Barrel I believe has a good reputation with their
           | spice sourcing.
           | 
           | https://www.burlapandbarrel.com/products/turmeric
        
           | salad-tycoon wrote:
           | Some supplement companies/nootropic companies purport to do
           | 3rd party certificate of analysis with microbe, and heavy
           | metal testing. You can find them on Reddit. Can you believe
           | the companies? I kinda do.
        
           | bigbillheck wrote:
           | It's hard to go wrong with Penzey's :
           | https://www.penzeys.com/pages/consumer-reports
        
             | EricE wrote:
             | Only for half of the company, according to their CEO
        
           | natdempk wrote:
           | Yeah I've also been wondering this. Would love it if anyone
           | has similar knowledge, especially about other spices beyond
           | Tumeric.
        
             | TedDoesntTalk wrote:
             | I posted this above. ConsumerLab does this testing on all
             | sorts of products and foods. They are a non-profit. The
             | annual fee you pay supports the research and testing
             | directly.
             | 
             | They tested many brands of both spice and supplement for
             | lead, arsenic, cadmium, and mercury, and published the
             | amounts they found in each brand:
             | 
             | https://www.consumerlab.com/reviews/turmeric-curcumin-
             | supple...
             | 
             | Of great importance lately was their discovery of benzene
             | in many common sunscreens which forced many product
             | recalls. I used their findings to change brands for my
             | entire family.
        
           | _adamb wrote:
           | If you're consuming it as a supplement it's a lot cheaper
           | (and safer) to just make it yourself. The process is
           | basically: cut it up into thin slices, dry it out in the
           | oven, grind it up.
           | 
           | If you're not taking it in supplement quantities, then I'm
           | not sure I'd be tremendously worried about any other
           | contamination...
        
             | lisasays wrote:
             | Doesn't help at all if the roots themselves are dusted, as
             | per the article. Right?
        
               | _adamb wrote:
               | Good question. Most turmeric roots I've bought aren't
               | nearly as bright orange as the powered stuff. I _assume_
               | that means they're not applying the same chromate
               | brightening agent but it's not impossible.
               | 
               | I guess I'll have to start growing it myself...
        
           | perihelions wrote:
           | - _" E.g., if I buy turmeric from Walmart or Whole Foods, can
           | I safely assume that they're monitoring the product streams
           | for lead?"_
           | 
           | You can safely assume absolutely nothing.
           | 
           | https://www.consumerreports.org/health/food-safety/your-
           | herb...
           | 
           | https://news.ycombinator.com/item?id=29375003 ( _" Herbs and
           | Spices Might Contain Arsenic, Cadmium, and Lead
           | (consumerreports.org)"_) (2021)
           | 
           | - _" The lack of regulation leaves much of the monitoring of
           | heavy metal levels to companies. [Consumer Reports] contacted
           | all the ones with products in our tests to see how they
           | limited heavy metals._"
           | 
           | - _" Of the companies that replied to our questions--Al Wadi
           | Al Akhdar, Costco, Bolner's Fiesta, Gebhardt, Litehouse,
           | McCormick, Roland Foods, Spice Islands, Target, and Whole
           | Foods--a few said they require their suppliers to have a
           | program for controlling or testing for heavy metals. But only
           | three--Al Wadi Al Akhdar, Bolner's Fiesta, and McCormick--
           | specifically said they test products in their manufacturing
           | plants for heavy metals."_
        
             | TedDoesntTalk wrote:
             | ConsumerLab tested many brands of both spice and supplement
             | for lead, arsenic, cadmium, and mercury, and published the
             | amounts they found in each brand:
             | 
             | https://www.consumerlab.com/reviews/turmeric-curcumin-
             | supple...
             | 
             | Paywall
        
           | MengerSponge wrote:
           | Spicewalla (out of Asheville) should be reputable
        
           | UberFly wrote:
           | After reading that article I personally won't trust any I buy
           | from anywhere unless it's from a reputable source and
           | actually states that it's tested/lead-free. Yikes.
        
             | klipt wrote:
             | "Lead free" may be impossible, there is natural levels of
             | lead in the soil that is taken up by plants.
             | 
             | However there's orders of magnitude difference between
             | those natural levels, and adulterated spices with lead
             | deliberately added for coloring.
             | 
             | Try googling the lead content of an average carrot, for
             | example.
        
         | testfoobar wrote:
         | A few more:
         | 
         | "Lead in Spices, Herbal Remedies, and Ceremonial Powders
         | Sampled from Home Investigations for Children with Elevated
         | Blood Lead Levels -- North Carolina, 2011-2018":
         | https://www.cdc.gov/mmwr/volumes/67/wr/mm6746a2.htm
         | 
         | "Analysis of Lead in Spices Obtained from Bulk Food Stores"
         | (PDF): http://libjournals.unca.edu/ncur/wp-
         | content/uploads/2021/02/...
         | 
         | "Heavy Metals in Cultural Products":
         | https://www.epa.gov/children/heavy-metals-cultural-products
        
       | no_butterscotch wrote:
       | I wonder if this turmeric spread and was sold in the West. My
       | mother recently started taking "golden turmeric" and insists that
       | it's a cure for a lot of ills. Maybe that's true I don't know,
       | she sent me some articles a couple years ago. It was clear that
       | she was influenced by Facebook groups.
       | 
       | Hopefully the turmeric she takes is safe :(
        
         | natdempk wrote:
         | If you want to be extra safe, you can buy some for her from a
         | safer supplier like: https://www.americanturmeric.com/lead-
         | free-turmeric
        
           | perihelions wrote:
           | They expect us to be swayed by a stock photo of a laboratory?
           | 
           | https://www.americanturmeric.com/how-we-test-our-turmeric (
           | _" Laboratory Results - Buy With Confidence"_)
           | 
           | https://www.dreamstime.com/stock-image-laboratory-
           | image24729... ( _" Royalty-Free Stock Photo: Laboratory with
           | many operated science instrument_ [sic] _and computer_ ")
        
             | itsoktocry wrote:
             | > _They expect us to be swayed by a stock photo of a
             | laboratory?_
             | 
             | I don't think any picture of a lab would have any meaning
             | to me, whatsoever. Is the product legit tested? That's all
             | that matters. I don't care what the lab looks like.
        
             | natdempk wrote:
             | It's a stock photo used on a website, did you expect them
             | to go to the actual laboratory they worked with and take
             | one?
             | 
             | I have no affiliation here, but they even listed the
             | company they used for testing so presumably you could
             | call/email them if you want further confirmation. None of
             | this seems unreasonable to me, and I don't think a stock
             | photo is a gotcha for product quality.
        
               | londons_explore wrote:
               | Many online sellers post a photo of their factories and
               | workers as a way to demonstrate quality - ie. "look, we
               | make out products with big expensive modern machines, not
               | children doing it by hand". Some aliexpress sellers even
               | post 20-30 pictures of different parts of the production
               | process.
               | 
               | Posting a stock photo is trying to defraud buyers who
               | expect to see the factory it is made in.
        
               | perihelions wrote:
               | There's a lack of forthrightness in publishing a stock
               | photo without a disclaimer. "Lack of forthrightness" is
               | an anti-signal. Stock photography on a commercial website
               | is an anti-signal.
        
               | maximinus_thrax wrote:
               | > Stock photography on a commercial website is an anti-
               | signal
               | 
               | Where do you expect stock photography to be used? Only in
               | mock-ups and design pitches?
        
               | pengaru wrote:
               | > Where do you expect stock photography to be used? Only
               | in mock-ups and design pitches?
               | 
               | As if something's existence alone justifies its
               | (mis)use...
               | 
               | I'm reminded of the Invader Zim Hamstergeddon episode
               | when the tanks arrive and one of the soldiers shouts
               | "We've gotta _use_ this stuff on _something_! "
        
         | morsch wrote:
         | Fwiw a study done in Germany in 2022 found no traces of lead in
         | 19 turmeric products of all price ranges.
         | 
         | https://www.oekotest.de/essen-trinken/Kurkuma-Labor-findet-M...
        
         | more_corn wrote:
         | Just convince her that it's more magical (er, healthy) if she
         | buys it fresh and grinds it herself.
         | 
         | It actually tastes better that way, richer and more earthy.
         | 
         | It does leave your fingers stained, but that is actually a
         | benefit since it is a conversation starter.
        
         | valarauko wrote:
         | I suggest asking your Indian friends where they buy their
         | spices from, and check out your local Indian grocery store -
         | the spices are from major Indian brands and undergo a lot of
         | testing, with additional certification for export to the US.
        
           | itsoktocry wrote:
           | > _check out your local Indian grocery store - the spices are
           | from major Indian brands and undergo a lot of testing, with
           | additional certification for export to the US._
           | 
           | Well, uh, I'm no expert, having just read about this here,
           | today. But what you are saying flies in the face of half of
           | the comments here, doesn't it? What makes you sure that the
           | "local Indian grocery store" is getting high-quality, tested
           | spices?
        
       | Tozen wrote:
       | People and companies knowingly contaminating food products with
       | poisons like lead, should be put in jail. Companies knowingly
       | selling such products, should be at least heavily fined, possibly
       | prosecuted as well. Bottom line, this is clearly poisoning (and
       | killing people) to make a few extra bucks. There should be no
       | leniency whatsoever for this clear evil.
        
         | itsoktocry wrote:
         | > _There should be no leniency whatsoever for this clear evil._
         | 
         | Normally I'd call this sort of language hyperbolic, but in this
         | case I'm not sure it is.
         | 
         | You _know_ people are consuming this product. Literally
         | poisoning people to save a few dollars? It 's inexplicable.
        
           | mkoubaa wrote:
           | Jail is too lenient, this is the sort of offence where I want
           | to see heads on spikes
        
       | CoastalCoder wrote:
       | Interesting article. One thing I'm left wondering though is: for
       | the offending vendors, _how aware_ were they of the potential
       | harm they were causing?
       | 
       | IMHO the punishment should, in some sense, scale with that
       | detail.
       | 
       | As a parent, if I found out that someone was knowingly poisoning
       | my children for profit, I'd have some very uncharitable urges.
        
         | bee_rider wrote:
         | Maybe to some extent it should scale with that detail. However,
         | to some extent everyone in the food processing chain has a
         | responsibility to be diligent and competent, right? If we let
         | people off the hook for not knowing the quality of their
         | suppliers, and finding out is expensive, then we're applying a
         | filter in favor of incompetence.
        
           | slumberlust wrote:
           | This behavior is pervasive across all industry. If profit is
           | the sole motivator, public opinion or insubstantial fines are
           | not enough of a deterrent.
        
         | no_butterscotch wrote:
         | I do wonder if some of the dirt poor street-vendors were "in on
         | it" or just the fall-guys.
        
           | alephnerd wrote:
           | It's bought wholesale at Mandis/Markets. Any kind of lead
           | adulteration probably happened with the Spice Distributor
           | (either the spice distributor or the wholesaler). If you are
           | a street food vendor, your margins are low so you would
           | probably go for the cheaper alternative.
           | 
           | The price of turmeric across SAARC also skyrocketed due to
           | higher than average rainfall in MH+TG along with skyrocketing
           | "Western Hipster Superfood" demand, which has a carryover
           | effect to the Bangladesh and Nepal markets.
           | 
           | Farms -> Trader -> Wholesale Mandi/Market -> Spice
           | Distributor -> Restaurant/Street Food Vendor
        
       | perihelions wrote:
       | The broad outline of these facts has been known for decades (that
       | spice processors intentionally adulterate turmeric with the
       | yellow pigment, lead chromate). These are sold in the First World
       | as well, and are culpable e.g. for acute lead poisoning in
       | children in the USA:
       | 
       | https://www.bu.edu/sph/news/articles/2017/high-levels-of-lea...
       | (2017)
       | 
       | - _" The study, in Public Health Reports, the official journal of
       | the US Public Health Service and the US Surgeon General, also
       | describes several cases of child lead poisoning in the US that
       | have been linked to consumption of spices, including turmeric."_
        
       | valarauko wrote:
       | I'm a little surprised at the initial confusion about the source
       | of lead, or perhaps it's the way the article has been written. As
       | someone who grew up in India, our school textbooks in the 90s had
       | a list of common food adulterants, and turmeric adulteration with
       | lead chromate was common knowledge to middle schoolers. I recall
       | the curriculum included how to detect adulteration with simple at
       | home tests. After turmeric, the next suspect probably would be
       | yellow lentils.
       | 
       | EDIT: actually the next suspect should be red chillis,
       | adulterated with lead oxide.
       | 
       | On an aside, food adulteration used to be such a common social
       | menace in India in the 70s & 80s, such that it was a common theme
       | in the backdrop of Bollywood films, with the hero taking on local
       | mafia bosses who also dabble in food adulteration. India did a
       | mediocre job controlling the rampant food adulteration, with the
       | last major case I recall being an outbreak of Epidemic Dropsy in
       | 1998 due to contamination of mustard oil. There's been cases
       | every once in a while, though I suspect in those cases it is
       | inadvertent contamination with Argemone plants growing in mustard
       | fields.
        
         | [deleted]
        
         | Natsu wrote:
         | What sort of test would you do for this? Did you have to buy a
         | test kit?
        
           | rikelmens wrote:
           | 1. The Water Test: Take a glass of warm water and add a
           | teaspoon of your turmeric powder to it. Let it sit for 10-15
           | minutes. If the turmeric powder settles down, it is pure. If
           | it doesn't settle to the bottom and leaves a dark yellow
           | colour, it is adulterated.
           | 
           | 2. The Palm Test: Take a pinch of your turmeric powder and
           | rub it into the palm of your hand for a few seconds, then
           | turn your palm over. Pure turmeric will stick to your palm
           | and leave a yellow stain, whereas adulterated turmeric will
           | mostly fall off.
        
             | ed25519FUUU wrote:
             | Wouldn't lead contamination cause the turmeric to sink?
        
               | SideburnsOfDoom wrote:
               | Lead Chromate, not Lead.
               | 
               | But apparently it's also not very soluble in water, so
               | the question about sinking stands.
               | 
               | Possibly, a chemical powder is much finer than a ground-
               | up plant matter, and takes longer to settle.
               | 
               | https://en.wikipedia.org/wiki/Lead(II)_chromate#Safety_ha
               | zar...
        
               | literalAardvark wrote:
               | I've actually had a successful test with the water
               | method. The lead coloring shows immediately and remains
               | dissolved or in suspension or whatever for days, possibly
               | forever. Turmeric doesn't usually color water at all.
        
               | Tozen wrote:
               | There are youtube videos showing how to do the turmeric
               | test with water. Definitely, everyone that uses it,
               | should know this.
               | 
               | https://www.youtube.com/watch?v=tXWPf0HQd5U
               | 
               | (Testing Turmeric Powder adulteration with Artificial
               | Color)
        
               | colordrops wrote:
               | I just tried this test with some turmeric powder I had at
               | home and it failed according to what is shown in the
               | video. I happened to have a lead testing kit, and it
               | doesn't have lead though. The powder does have some
               | ginger and other herbs in it, so apparently harmless
               | adulterants other than lead can cause it to fail this
               | visual test.
        
           | valarauko wrote:
           | I recall we did simple tests like this in school - we had to
           | bring in samples of foodstuffs from home to do the tests, and
           | the school would provide a positive control. This must have
           | been the seventh grade or so?
           | 
           | https://www.vasantmasala.com/blog/how-to-check-
           | adulteration-...
        
         | akavi wrote:
         | As an ABCD, likewise. My mom told me to specifically buy
         | turmeric at western grocery stores (as opposed to other spices,
         | which could be had for better prices at Indian grocery stores)
         | because of concerns around lead.
        
           | valarauko wrote:
           | tbf lead testing is pretty standard in Indian spice brands
           | for a long time now, though for some reason the brands don't
           | really advertise it. Reputable brands like MDH and Everest
           | would be pretty safe.
        
             | [deleted]
        
           | chucksta wrote:
           | You would hope, its common to find heavy metals in those
           | seasonings too; https://www.consumerreports.org/health/food-
           | safety/your-herb... IE Oregano is flagged across the board on
           | the report.
        
           | sidewndr46 wrote:
           | What is an ABCD?
        
             | victor106 wrote:
             | Is it considered offensive to use that? Just trying to make
             | sure I don't run into any issues during these "woke" times.
        
             | sbierwagen wrote:
             | https://en.wikipedia.org/wiki/American-Born_Confused_Desi
        
               | sidewndr46 wrote:
               | Oh wow, I've seen this without knowing it had a name.
        
               | brianpan wrote:
               | See also ABC: https://en.wikipedia.org/wiki/American-
               | born_Chinese
        
               | princevegeta89 wrote:
               | Lol, I never knew there was a Wikipedia article for this
               | slang acronym that we use all the time.
        
         | hammock wrote:
         | How can I test for lead in my tumeric?
         | 
         | Edit: found this page which is amazing
         | https://eatrightindia.gov.in/dart/
        
         | zajio1am wrote:
         | > actually the next suspect should be red chillis, adulterated
         | with lead oxide.
         | 
         | Why would anyone adulterated red chillis with lead oxide
         | instead of perfectly safe iron oxide, common food colorant?
        
           | bastawhiz wrote:
           | I don't know for sure, but I'd suspect it's the flavor: iron
           | oxide tastes metallic, lead oxide tastes somewhat sweet.
           | That's partially why you hear about kids eating lead paint
           | chips and not bits of rust.
        
         | sidewndr46 wrote:
         | This reminds me of how scurvy was apparently well known in the
         | age of sail but sort of forgotten with the industrial
         | revolution. It showed back up again in Arctic expeditions from
         | what I understand.
        
           | hinkley wrote:
           | I don't recall where the the Arctic expeditions slot into
           | this saga, but for ages we understood the lemon link but we
           | hadn't identified Vitamin C yet.
           | 
           | So there was a moment in time where the British Royal Navy
           | was carrying around concentrated lime juice to fight scurvy
           | (hence, Limey). Only the vendor that made the lime juice
           | processed it in copper vessels, destroying most of the
           | vitamin C.
           | 
           | It doesn't take much vitamin C to prevent scurvy. But it does
           | take some.
        
             | yndoendo wrote:
             | "The Accidental Scientist: The Role of Chance and Luck in
             | Scientific Discovery" talks all about the different
             | substances tried to prevent and cure scurvy. British
             | sailors turned to have a daily ration of rum mixed with the
             | lime juice.
        
             | durkie wrote:
             | There was a competing theory that scurvy was prevented by
             | eating fresh meat, and that's easier to get in the arctic:
             | https://idlewords.com/2010/03/scott_and_scurvy.htm
        
               | hinkley wrote:
               | > Vitamin C can be destroyed by heat and light. High-heat
               | cooking temperatures or prolonged cook times can break
               | down the vitamin. Because it is water-soluble, the
               | vitamin can also seep into cooking liquid and be lost if
               | the liquids are not eaten.
               | 
               | In "The Terror" (A supernatural horror story by Dan
               | Simmons, set in the lost Franklin expedition) it is raw
               | meat that saves the indigenous people from scurvy. Which
               | is probably not too inaccurate.
        
             | bsder wrote:
             | I seem to remember that it was also a switch to a different
             | citrus fruit which had way less vitamin C in it so the
             | processing was much mroe important.
             | 
             | However, since the switch corresponded to the rise of steam
             | power (ship trips were much faster), nobody noticed that
             | that they weren't protected from scurvy anymore.
             | 
             | It wasn't until the artic expeditions that scurvy
             | protection got tested again.
        
         | HarryHirsch wrote:
         | _inadvertent contamination with Argemone plants growing in
         | mustard fields_
         | 
         | You sometimes still see mustard advertised as "argemone-free".
         | To think that some people in the US voluntarily drink
         | yellowroot tea because apparently it helps with diabetes is
         | scary - the chemical similiarity between sanguinarine in
         | argemone and berberine in yellowroot is just too great for it
         | to be a good idea.
        
           | interroboink wrote:
           | I don't know anything about the tea you refer to, but "the
           | chemical is similar" is not a great signal, IMO. You can even
           | have the exact same chemical with different chirality having
           | dramatically different effects on the body (eg: l- and d-
           | methamphetamine, and plenty of others).
           | 
           | Not saying it has 0 relevance, but I wouldn't take it to mean
           | much on its own. It's like people being scared of mercury
           | dental fillings because "it has mercury in it, which is
           | poisonous." That doesn't follow.
        
             | civilitty wrote:
             | Knee-jerk reactions like that aren't helpful with
             | biological compounds. In this case they're both
             | benzophenanchridine/isoquinoline alkaloids with the same
             | functional groups: a methylenedioxy bridge and at least one
             | methoxy group.
             | 
             | L- and D-methamphetamine are a rather unique case because
             | their enantiomeric forms have different effects on the
             | central and peripheral nervous systems. They're much more
             | different from each other structurally than berberine is
             | from sanguinarine.
        
           | valarauko wrote:
           | > You sometimes still see mustard advertised as "argemone-
           | free"
           | 
           | This was a response to the 1998 outbreak. I remember in the
           | early days it was suggested the culprit was argemone
           | poisoning, and honestly that's what I thought it was all this
           | time. Wikipedia suggests it was adulteration with white
           | petroleum.
        
       | snapetom wrote:
       | Forsyth's work was submitted here on HN four years ago, if you
       | want to read the study.
       | 
       | https://www.sciencedirect.com/science/article/pii/S001393511...
       | 
       | They found no elevated lead in Indian samples in their study, but
       | they note Indian tumeric have been subject to lead recalls in the
       | past. And of course, proper and transparent sourcing from
       | manufacturers, is an issue.
        
       | TheRealPomax wrote:
       | tl;dr:                 Color matters to turmeric purchasers, and
       | turmeric that is more vibrantly yellow typically sells for higher
       | prices. The Stanford University team learned that this color-
       | linked perception of quality may have started in the 1980s, when
       | a flood interrupted the drying process, turning rhizomes brown
       | and moldy.            To mask flawed turmeric, some processors
       | began dusting the roots with lead chromate -- an orange-yellow
       | industrial pigment used to color plastics and furniture. From the
       | interviews, Forsyth learned that this coloration step continued
       | for four decades after the flood and that most processors weren't
       | aware that the pigments were toxic
       | 
       | Even tl;dr-er: they color low quality tumeric with lead-based
       | pigments to make it look like high quality tumeric. Like how
       | China spray paints dead grass green. But with more lead.
        
         | WirelessGigabit wrote:
         | China? Grass paint is booming business in SoCal. All because
         | they don't realize they live in a desert. People bash on
         | Arizona for spending water when it's super dry but take a look
         | at Southern AZ lawns vs SoCal lawns. The Southern AZ ones are
         | much more adept to the desert.
        
       | yumraj wrote:
       | Powdered turmeric can be bright yellow, if the roots are boiled
       | before drying and grinding, or dark/dirty yellow if not boiled
       | since natural color of turmeric is dirty yellow.
       | 
       | Costco/Kirkland powered turmeric[0] is one of the rare ones that
       | is dirty yellow, so we generally get that in the hope that it is
       | lead free.
       | 
       | [0] https://www.costco.com/kirkland-signature-ground-
       | turmeric,-1...
        
       | glonq wrote:
       | I have a friend who strongly gravitates towards non-traditional
       | solutions for every health & medical problem.
       | 
       | Upon hearing that I had developed cancer, she whipped up a batch
       | of turmeric-infused notions and potions for me, which I
       | appreciate. I haven't touched them yet. Maybe I'll get them
       | tested first; the last thing I need right now is lead poisoning!
        
       | bakul wrote:
       | They could have just asked.... Most who grew up in the
       | subcontinent know this.
        
         | EricE wrote:
         | Yeah, but then they couldn't have wrote a multi-page flowery
         | article about how smart they were interspersed with social
         | justice. What fun would that be?
        
         | wolpoli wrote:
         | So they leveraged the Stanford name and got the government to
         | pay attention and take actions. That's great for the people in
         | Bangladesh but still, it's not groundbreaking research that
         | they made it out to be.
        
       | more_corn wrote:
       | tl:dr they use a lead based pigment to keep it a vibrant color
       | apparently not knowing that the pigment was lead based.
        
       | hinkley wrote:
       | Those who do not learn from history will be exploited by those
       | who do?
        
       | heywhatupboys wrote:
       | This _article_ screams  "white american saviour"
       | 
       | WHO in 2023 writes like this??
       | 
       | > Food Safety authority representatives, flanked by soldiers in
       | camouflage uniforms, magenta berets and guns slung over their
       | shoulders, strode down the center of a busy street market in
       | Dhaka, the capital city. The crowds parted.
       | 
       | > Men riding three-wheeled rickshaws pulled over. Street vendors
       | stopped stirring their aromatic curries. The spice sellers
       | wearing parti-colored lungi skirts fell silent. Some curious
       | merchants, sitting atop stacks of potatoes, ginger, onions and
       | garlic, jumped down to follow the entourage.
        
         | EricE wrote:
         | So I wasn't the only one that was unimpressed with the flowery
         | anecdotes either?
        
         | ramesh31 wrote:
         | >WHO in 2023 writes like this??
         | 
         | All websites do, as their staff is entirely comprised of 23
         | year old English majors who equate this style with "good
         | writing". The entire internet reads like a C+ sophomore term
         | paper now.
        
         | ziml77 wrote:
         | Did you even read the context around that? Everyone involved in
         | the scene described was Bangladeshi. And the point of writing
         | it like a dramatic scene in a movie is made clear in the giant
         | quote and paragraph that follow: it was law enforcement
         | theater. They didn't have the capacity to enforce food safety
         | at the scale necessary, so they used this tactic to instill
         | fear in people who were still using the outlawed lead-based
         | pigment.
        
       | newaccount74 wrote:
       | I don't understand how lead pigments are still legal in some
       | parts of the world at all. What kind of things need a bright
       | yellow color that will slowly poison you if you touch it?
       | 
       | Also, those handheld XRF spectrometers are amazing tech. I wish
       | they were more affordable.
        
         | adamwong246 wrote:
         | > "Why? For the same reason our reactors do not have
         | containment buildings around them, like those in the West. For
         | the same reason we don't use properly enriched fuel in our
         | cores. For the same reason we are the only nation that builds
         | water-cooled, graphite-moderated reactors with a positive void
         | coefficient. It's cheaper." ~ Valery Legasov, Chernobyl
        
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