Phytanic Acid: Purpose, Functions, and Its Role in the Body
Phytanic acid is a branched-chain fatty acid (BCFA) that plays an important role in various biological processes. It is derived from dietary sources such as dairy products, ruminant animal fats (e.g., beef, lamb), and certain types of fish (e.g., cod, haddock). Unlike straight-chain fatty acids, phytanic acid cannot be broken down by the regular β-oxidation pathway in mitochondria due to its branched structure. Instead, it undergoes α-oxidation in peroxisomes, where it is metabolized into smaller molecules for energy production. While phytanic acid has significant functions in the body, it can be toxic if accumulated in excessive amounts, as seen in certain metabolic disorders such as Refsum disease . Purpose and Functions of Phytanic Acid Phytanic acid serves several functions in the body, particularly in cell membranes, protein modification, gene regulation, and immune responses. 1. Cell Membrane Fluidity Phytanic acid is important for increasing cell membrane fluidity . When it i...