Table 1.

The classification of dietary supplements, except vitamins and minerals (prepared by the authors)

Dietary supplements	Example substances
Amino acids	L-arginine
Enzymes	Lactase Papain
Prebiotics and probiotics	Inulin Lactobacillus acidophilus Bifidobacterium species Yeast
Essential non-saturated fatty acids	γ-Linolenic acidFish oil (DHA/EPA) Flaxseed oil (Linum usitatissimum) Borage seed oil (Borago officinalis)
Plant-origin ingredients	Aloe (Aloe vera) Ginkgo (Ginkgo biloba) Ginseng (Panax ginseng) Garlic (Allium sativum) Green tea extract (Camellia sinensis) Garcinia cambogia extract Guarana Extract (Paullinia cupana)
Other substances:	Lycopene Lutein Coenzyme Q10 Taurine Carnitine Inositol Glucosamine Chitosan Spirulina Soy isoflavones