This is the publication that USA Swimming provides to coaches and swimmers:
"Dietary Supplements: A Comprehensive Guide for Swim Coaches"
www.usaswimming.org/.../Dietary Supplements Guide 05 Dec 15.pdf
It contains 37 pages of very clear language about the risks of taking supplements.
Pages 10-13 contain an interview with Kicker Vencill.
Page 9 contains an interesting risk chart.
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Disclaimer: The tomato pictured in the avatar contains no PEDs.
This is the publication that USA Swimming provides to coaches and swimmers:
"Dietary Supplements: A Comprehensive Guide for Swim Coaches"
www.usaswimming.org/.../Dietary Supplements Guide 05 Dec 15.pdf
It contains 37 pages of very clear language about the risks of taking supplements.
Pages 10-13 contain an interview with Kicker Vencill.
Page 9 contains an interesting risk chart.
-----------
Disclaimer: The tomato pictured in the avatar contains no PEDs.