Bioavailability refers to the degree and rate at which a substance is absorbed and made available for use in the body after ingestion. This term is particularly relevant when it comes to nutrients, medicines and supplements. High bioavailability indicates efficient absorption and utilization of a substance, while low bioavailability means limited absorption and reduced availability to the body.
Factors that affect bioavailability include molecular size, chemical form, solubility, and the presence of other substances that can affect absorption. For example, techniques such as micronization or specific formulations can help improve the bioavailability of certain substances.
Understanding bioavailability is crucial for the development of dietary supplements, pharmaceuticals and nutritional strategies to ensure optimal efficacy and digestion. Much research is being done in this area to improve formulations and methods that can increase bioavailability and thereby improve both health and efficacy.