Nutritional supplements containing a dietary ingredient, wherein a dietary ingredient is one, or any combination, of a vitamin, a mineral, an herb or other botanical, an amino acid, a dietary substance for use by people to supplement the diet by increasing the total dietary intake, and a concentrate, metabolite, constituent, or extract, excluding those marketed for the treatment or prevention of neurodegenerative diseases or neurodegenerative medical conditions, but expressly including any ingredient that may be deemed a nutritional or dietary supplement according to the U.S. Food and Drug Administration