Here are a few links to webpages that discuss phytonutrients, sometimes called phytochemicals as well.

http://www.webmd.com/diet/phytonutrients-faq

http://www.glyconutrientsreference.com/whatarephytonutrients.php

http://www.the-natural-path.com/phytonutrients.html

http://www.naturalnews.com/phytonutrients.html

http://www.ars.usda.gov/is/ar/archive/dec99/stage1299.htm

http://www.phytonutrients-online.com/

http://www.nutrition.gov/whats-food/antioxidants-phytonutrients

http://www.realtime.net/anr/phytonu.html

http://www.expert-anti-aging-advice.com/phytonutrients.html


Here are a couple links to articles about how antioxidants and vegetarian eating can effect testosterone levels.

http://www.peaktestosterone.com/Testosterone_Vegetarian.aspx

http://www.peaktestosterone.com/Antioxidants_Testosterone.aspx