If an adult consumes meat at every meal and has normal health (no genetic defects), which vitamin-like nutrient is least likely to be deficient in this person under ordinary conditions?

• A. Inositol, because dietary intake is restricted to organ meat only and cannot be obtained from plants.
• B. Choline, because choline is only available from synthetic supplements and cannot be obtained from meat products.
• C. Carnitine, because common diets containing regular meat and dairy supply dietary carnitine in addition to normal endogenous synthesis.
• D. Lipoic acid, because it is only synthesized by gut bacteria and cannot be obtained from any animal-source food.

Answer: (C)