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Why is there a Proposition 65 Warning on some Thorne products?

A California consumer advocacy group called Environmental Research Center tested a number of Thorne products and found that, based on a product’s recommended daily use, 25 (out of 300+) Thorne products contained levels of lead higher than the extremely conservative Proposition 65 threshold limit for lead for birth defects or other reproductive harm. In addition, two products were over Proposition 65’s threshold level for cadmium.

Please see our California Proposition 65 webpage for more information.
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