The proportion of a substance, such as a nutrient, supplement, or drug, that enters the systemic circulation and is made available at the site of physiological activity. It is a crucial factor in determining the efficacy of any therapeutic intervention. Bioavailability is influenced by the chemical form of the substance, the delivery method, and the health of the individual's digestive and metabolic systems.
In advanced health formulations, enhancing bioavailability is essential for ensuring that active ingredients can reach the intracellular environment. Techniques such as using specific delivery molecules (like octreotide or Vitamin C) or utilizing sublingual administration are employed to bypass the digestive system and increase the amount of the compound that reaches the target cells. High bioavailability ensures that even small doses of a compound can exert significant biological effects on metabolism and detoxification.
The definitive guide by Russell Clark, FNP-C, APRN