A customer wrote: I obtained a bottle of Quercetin by Nutricology because your site recommended this brand. I was shocked to find a label affixed to the bottle proclaiming that it contained lead. Do I need to be concerned about this and is there another brand that might be better?
Nutricology (and perhaps other therapeutic supplement companies) chose to put the California Prop 65 Lead Content warning on ALL of their products for which the highest possible dose exceeds the Proposition 65 maximum of .5 ppm (parts per million). As their Technical Support Manager writes:
“If we had chosen to not have a suggested dose on our labels or if we had suggested a lower dose which may not be efficacious for some, we would not have had to put the CA Prop 65 warning on any of our products. When you consider the fact that our products, even at the high end level still contain less than 1% of what is found in most foods in the US, where the danger lies, or if it exists becomes questionable.”
We Stock What Jini Uses
Each person should do their own research into health or manufacturing concerns. Jini conducts her research and then we stock the same products she uses for herself and her family.
Here is some of the information that Jini references on this subject and we encourage you to do your own research and then make your own decision according to your body wisdom.
More on The California Lead Warning Labels
According to Dr. Subhuti Dharmananda, Ph.D.:
The warning labels required by Proposition 65 do not present information about the safety or the risk of the products; the warning about lead does not specify the actual amount of lead that is present or whether any particular amount is harmful. The requirement for a warning label is triggered when the amount of a regulated substance in a product exceeds a certain regulatory level, which is very low in the case of lead.
According to the way Proposition 65 is worded and with the limited data about effects of exposure to lead, the labeling must be done if the total daily lead intake exceeds just 0.5 micrograms (µg).
Other Supplement retailers present data like this information below for comparison – to help you get a sense of the contamination risk:
Lead is an element that is found in almost all soil. The US Geographic Survey has estimated that the average lead content of completely uncontaminated soil in the US is about 16 parts per million (ppm). Over the last hundred years, lead-bearing fuels, paints, and other products have deposited man-made lead contaminants into the soil throughout the United States (and developed countries all over the world). Crops that grow in this soil will absorb this man-made lead. In the US, lead levels in soil are now considered “low” below 500 ppm, and are considered “high” above 1000. [Note1] The EPA requires that soils in children’s play areas must be under 400 ppm, and in other residential areas must be less than 1200 ppm. For comparison, EPA requires that children’s toys contain less than 100 ppm of lead.
The federal safety standard set by the FDA for lead in dietary supplements is no more than 10 ppm. International standards are often 5 ppm. But the Prop 65 “safe harbor” standard is 0.5 micrograms per day, meaning that a person may not be exposed to lead above this amount, f