Proposition 65 is absurdly restrictive. It was in part (in part, I said, not solely) devised to destroy the nutritional supplementation industry, in deference to the FDA and Big Pharma.
Natural substances contain trace amounts of lead, among other things. Unnatural pharmaceuticals do not - unless they are designed to do so, like some past mercury-based vaccines.
Just as with CFLs, if it serves some Big Industry, especially one favorable to Obama and company, it gets a pass.
G
G = typo.
P.S.
Many products and some entire companies in the nutritional market were effectively forced off the market by 65.