The list goes on and on. What we are seeing in the acceptance of nutrients like carnitine by more and more Americans is the realization that energizing nutrients like carnitine are some of the most important we can take. Energy is the most important thing we need to keep the body from aging. Energy at the cellular level enhances the immune function, increases the body's ability to remove toxic and potentially disease causing compounds and helps cells live longer. Carnitine is found predominantly in meat and animal products.
Red meat is the best source.
Chicken and turkey also contain carnitine, though not as much as is found in red meat. Carnitine is also found to a lesser extent in milk and dairy products. We consume about 50 mg of carnitine per day in our diet. Those who eat many servings of red meat per day get more. Strict vegetarians get little or no carnitine.