http://www.ars.usda.gov/Services/docs.htm?docid=15672 http://www.ars.usda.gov/Services/docs.htm?docid=15672 Magnesium, calcium, potassium, fiber, vitamin C, D,

http://www.ars.usda.gov/Services/docs.htm?docid=15672 http://www.ars.usda.gov/Services/docs.htm?docid=15672 Magnesium, calcium, potassium, fiber, vitamin C, D, and E. Potassium is a good example, as supplementation is impossible, supplements are limited to 99mg by law. Vitamin E supplements have shown harm in clinical trials.