No: Not by fda. Food supplements are only regulated on claims they make on their labels. Concentration and contaminants are not checked and the industry fights to keep it that way.
Answered 6/28/2012
5.8k views
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
9 doctors weighed in across 4 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question