Vitamins
In a landmark review of 38 years of scientific evidence by Harvard researchers it was found that most people do not consume an optimal amount of all vitamins by diet alone. Pending strong evidence of effectiveness from randomized trials, it appears prudent for all adults to take vitamin supplements.

Robert H. Fletcher, MD, MSc; Kathleen M. Fairfield, MD, DrPH. Vitamins for Chronic Disease Prevention in Adults. JAMA. Vol. 287 No. 23, June 19, 2002.


Green Tea
Green tea extract has large volumes of published scientific findings that validate its multiple biological benefits. The most significant findings involve studies showing that green tea extract helps maintain cellular DNA and membrane structural integrity. The active constituents in green tea are powerful antioxidants called polyphenols (catechins) and flavonols. Epigallocatechin gallate (EGCG) is the most powerful of these catechins. EGCG functions as an antioxidant that is about 25-100 times more potent than vitamins C and E.

Eur J Clin Nutr. 1996 Jan;50(1):28-32. In vivo antioxidant effect of green and black tea in man. Serafini M, Ghiselli A, Ferro-Luzzi A. Istituto Nazionale della Nutrizione, Roma Italy.
Benzie IF, Szeto YT, Strain JJ, Tomlinson B. Consumption of green tea causes rapid increase in plasma antioxidant power in humans. Nutr Cancer 1999;34:83-7.


Ginseng
The herb Ginseng has long been taken for its energy giving properties and studies have shown that Ginseng can help fight fatigue.

Le Gal M, Cathebras P, Struby K. Pharmaton capsules in the treatment of functional fatigue: A double-blind study versus placebo evaluated by a new methodology. Phytother Res 1996;10:49-53.
Caso Mardsco A, Vargas Ruiz R, Salas Villagomez A, Begona Infante C. Double-blind study of a multivitamin complex supplemented with ginseng extract. Drugs Exp Clin Res 1996;22:323-9.