How food supplements work

Dietary supplements are  products for the increased supply of the human metabolism with certain nutrients or active substances. Legally, they are categorized as food. They are usually offered in form of capsules, in dosed quantity. Dietary supplements contain concentrates of nutrients such as vitamins, minerals, fiber or other substances with nutritional effects. They are intended to supplement the general diet.

The capsule with the ingredients is taken orally and gets into the stomach. There the cellulose or gelatin (consist of capsule shell) will be dissolved , and the active ingredients are released. The complexes of active ingredients are split in the stomach, the duodenum and the pancreas and slid through the intestinal wall into the bloodstream. The bloodstream transports the ingredients further into the intercellular tissue fluid of the whole body. From there the nutrients finally reach their destination and complement the relevant nutrient reservoirs.