As a pill As a capsule As a tablet As a softgel capsule used for fish oil or large amounts of vitamin E shake and bottled powder Production of cod liver oil, one of the first<unk>  products manufactured in the 18th century A<unk>  is a manufactured product intended to<unk>  one's diet by taking a pill, capsule, tablet, powder, or liquid. A<unk>  can provide nutrients either extracted from food sources or that are synthetic in order to increase the quantity of their consumption. The class of nutrient compounds includes vitamins, minerals, fiber, fatty acids, and amino acids.<unk> s can also contain substances that have not been confirmed as being essential to life, but are marketed as having a beneficial biological effect, such as plant pigments or polyphenols. Animals can also be a source of<unk>  ingredients, such as collagen from chickens or fish for example. These are also sold individually and in combination, and may be combined with nutrient ingredients. The European Commission has also established harmonized rules to help insure that food<unk> s are safe and appropriately labeled. Creating an industry estimated to have a 2020 value of $140.3 billion, there are more than 50,000<unk>  products marketed in the United States, where about 50% of the American adult population consumes<unk> s. Multivitamins are the most commonly used product among types of<unk> s. The United States National Institutes of Health states that<unk> s "may be of value" for those who are nutrient deficient from their diet and receive approval from their medical provider. In the United States, it is against federal regulations for<unk>  manufacturers to claim that these products prevent or treat any disease. Companies are allowed to use what is referred to as "Structure/Function" wording if there is substantiation of scientific evidence for a<unk>  providing a potential health effect. An example would be "_____ helps maintain healthy joints", but the label must bear a disclaimer that the Food and Drug Administration (FDA) "has not evaluated the claim" and that the<unk>  product is not intended to "diagnose, treat, cure or prevent any disease", because only a drug can legally make such a claim. The FDA enforces these regulations and also prohibits the sale of<unk> s and<unk>  ingredients that are dangerous, or<unk> s not made according to standardized good manufacturing practices (GMPs).
Dietary supplement
Diet 
Diabetes medication
Ultra-processed food
Concomitant drug
Vegetation 
Drug
Drug 