CA Prop 65

California Proposition 65 (Safe Drinking Water and Toxic Enforcement Act)

Proposition 65 Background

In 1986, the State of California adopted the Safe Drinking Water and Toxic Enforcement Act (Proposition 65), which applies not only to water quality, but also to consumer goods sold to the California public. Prop 65, as it is known, requires the State of California to publish and maintain a list of chemicals, known to the State of California to cause cancer, birth defects, or other reproductive harm.

Why do you have a California Prop 65 Warning Label on your product?

A few of our formulas contain ingredients that have small amounts of naturally occurring lead, and the total amount of lead in a full daily serving (the high end dose in the “Suggested Use” portion of our label), even though low, is higher than that allowed by California Proposition 65. The warning is only required for product sold in the State of California.

NutriCology has always tested its products for the presence of heavy metals, including lead, arsenic, mercury, and cadmium. The United States Pharmacopeia mandates no more than 10 μg/lead per day from any product, and all of our products are far below that level. California Proposition 65, however, sets the lead standard 20 times lower, at 0.5 μg/day. Because we have always endeavored to obtain the purest natural ingredients, the vast majority of our products exceed this standard as well.

None of our products contain a high amount of lead. Even for the few formulas that carry the CA Proposition 65 warning, a full daily serving contains a small percentage of the typical daily intake of lead from food (Kehoe; EFSA Journal). In fact, a serving will contain significantly less lead than a serving of many food items in North America (Schroeder and Balassa; FDA Total Diet Study).

Rest assured that we will meet the challenge of finding even purer ingredients so that none of them add any significant amount of this ubiquitous mineral to that already present in food and water.

Please feel free to contact us with any further questions.

Yours in Health,


Cutting Edge Nutritional Research