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What actual dose are we talking about?

Like, if I'm an average chocolate eater, what proportion of my total lead intake will come from chocolate, vs other sources?

If it's under 0.1%, it isn't worth talking about. If it's 1%, it's worth a passing thought. If it's 10% it's worth some effort to avoid/fix. If it's 50%, I'd probably give up chocolate.

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I once read something and I don't remember if it was from a good source. It said that one of the ways they can identify bones from the last 100 year is that older bones have something like 400x less lead traces in them. Basically everyone alive has a degree of lead poisoning thanks to leaded gasoline.

if you take the product they tested with the highest lead concentration (2.4µg per serving), and ate 10 servings, you would have 1/20th of the harmful concentration of lead, according to my calculations: https://news.ycombinator.com/item?id=34018344

It's cumulative, so you can't just take spot concentrations.

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