Technically, there is no known safe level of exposure to lead. Medical experts say the biggest health risks tend to come from repeated exposure at higher levels — including reproductive problems, kidney damage and cognitive impairment.
Industry groups have pushed back. The Council for Responsible Nutrition, a trade association representing dietary supplement manufacturers, argues the bill would create unnecessary costs and confusion without improving safety.
If you’re worried about potential exposure, Stanford University nutrition scientist Christopher Gardner said it’s worth considering whether you need protein supplements in the first place.
He noted that while they may benefit elite bodybuilders, the vast majority of Americans — even those who regularly lift weights — can get enough protein from food. Most of the gains from strength training come from the exercise itself, not added protein.
“So, hedge your bets,” wrote Gardner in an email to KQED. “Eat foods, not protein supplements. What have you got to lose — and what do you have to gain?”
The bill has cleared its first committee on Wednesday and now heads to another vote.
If it becomes law, California would be the first state in the country to require this kind of testing and transparency.
