Chelated: Chelated minerals are attached to amino acids that facilitate absorption by the body. Taking minerals with food can have a similar effect, but if you have trouble absorbing minerals, chelated forms are more consistent, reliable sources.
Whole foods: Nutrients have been extracted from natural, unprocessed food, and not made up in the chemistry lab. According to Jennifer Nevels, NMD, “whole-foods” vitamins can be less potent than synthetic supplements, but the body may absorb them more easily. If you choose a whole-foods vitamin, go organic to avoid ingesting concentrated amounts of pesticides and other harmful chemicals.
Ingredients to avoid>>
Added sugars such as glucose, evaporated cane sugar, and fructose.
Artificial flavors, colors, or preservatives Supplements free of these will typically be labeled as “natural” or say “no artificial flavors, colors, or preservatives.”
Dyes For example, red dye no. 40 and yellow dye no. 6 have been linked to cancer in animal studies.
Fillers or bulking agents such as cellulose and maltodextrine.