IMAGE: This photo shows the fossilized jaw of the oldest chinchillid rodent, Eoviscaccia frassinettii, which is related to the modern chinchilla. view more. Credit: AMNH/M.
There are three main types of dietary supplements, including herbal supplements, vitamin and mineral supplements and probiotic supplements.In addition, there are some dietary supplements that are harmful and should be avoided at all times.lthough different than the vitamin and mineral supplements, Herbal supplements are the base of many medicinal practices. Herbal supplements have been used for thousands of years, and with advances in technology, many herbal remedies are now available as a supplement.
A dietary supplement is a product intended for ingestion that contains a dietary ingredient intended to add further nutritional value to (supplement) the diet.A dietary ingredient may be one, or any combination, of the following substances: 1  a vitamin. 2  a mineral. 3  an herb or other botanical.4  an amino acid. 5  a dietary substance for use by people to supplement the diet by increasing the total dietary intake.ietary supplements may be found in many forms such as tablets, capsules, softgels, gelcaps, liquids, or powders. Some dietary supplements can help ensure that you get an adequate dietary intake of essential nutrients; others may help you reduce your risk of disease.