Here are the foods that contain the most L-carnitine per serving, according to the National Institutes of Health: Beef steak, cooked, 3 ounces: 42122 milligrams Ground beef, cooked, 3 ounces: 6574 milligrams Whole milk, 1 cup: 8 milligrams Codfish, cooked, 3 ounces: 35 milligrams Chicken breast, cooked, 3 ounces: 24 milligrams Ice cream, 1/2 cup: 3 milligrams Cheddar cheese, 2 ounces: 2 milligrams Whole wheat bread, 2 slices: 0.2 milligram Asparagus, cooked, 1/2 cup: 0.1 milligram Supplements and Dosage Although carnitine can be found naturally in plenty of food sources, its also available in supplement form as well
Total loss: 2040 lbs depending on starting weight
In prespecified secondary analyses, treatment groups were analyzed for an expanded list of CV, CKD, PAD, and HF outcomes
Updated May 15, 2026
You can safely store unopened vials of powder for extended periods, but once reconstituted, use them within 28 days