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Bioavailability: Highly bioavailable via parenteral routes

J Dent Res 2014;93:10629

This can have visible impacts in terms of skin appearance, resulting in reduced age spots and wrinkles, and can help to prevent acne breakouts and inflammatory skin flare-ups

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