He is notable for his well publicised recommendation that adults need 500 mg of Vitamin C twice per day to achieve optimum benefit. A level way above official recommendations and for which he now holds a patent (US patent 5,558,870) for this dosage regime for vitamin c. A study published in 2006 demonstrated how a combination of 500 mg of vitamin C taken twice a day and 400 IU of vitamin E once a day protects a person from many forms of damage from free radicals.
His latest work used a process known as nutrient signaling to develop a nutraceutical treatment that may cause weight loss. The process uses signals from supplements of branched chain amino acids, oleic acid, and DHA (a component of fish oil) to signal the brain and adipose tissue to cause weight loss. A double-blind clinical trial in a 2 week pilot study is consistent with the hypothesis this may facilitate weight reduction in people. The peer-reviewed article was published in the Journal of the American Aging Association in 2008.