Nutraceuticals are the components of foods and dietary supplements that heal. They include antioxidants, amino-acids, enzymes, fish oils, herbs, minerals, and vitamins. Many of these nutrients and antioxidants can penetrate into cells and prevent free-radical damage, cross-linking, and modulate gene expression to reduce inflammation and aging. Even if we eat an optimally nutritious diet, it is impossible to obtain all nutrients in our food. Stress and toxins, among others, cause a nutrient deficiency in even the best diets. This calls for sensible advanced supplementation of essential nutrients for life.