👉 Accessibility in biology, often referred to as bioaccessibility, is a measure of how much of a particular nutrient, compound, or other biologically active substance can be absorbed and utilized by the human body after ingestion. It considers factors such as the form of the substance, its chemical structure, the presence of other dietary components, and individual physiological differences. Bioaccessibility tests aim to predict bioavailability—the extent and rate at which a substance is absorbed and becomes available at the site of action in the body—by simulating the conditions of digestion and absorption. This concept is crucial for understanding nutrient efficacy, optimizing dietary recommendations, and developing functional foods or supplements that maximize health benefits.
