Not all the grass is green

John Morgenthaler knows that not all supplements are good. "John was the first to widely announce the dangers of saw palmetto and the possible negative effects of high doses of alpha tocopheral (a vitamin E isomer), beta carotene (a vitamin A), and riboflavin (B2)."¹ References

1. "Smart Publications Author: John Morgenthaler." http://www.smart-publications.com/bios/morgenthaler.php. Accessed 6/9/09.