Nutritional information may vary depending on flavour. What is L-Carnitine? L-Carnitine is an amino acid that is found naturally in the body, and is formed from the amino acids lysine and methionine. Our high-strength l-carnitine tablets deliver 1000mg per serving, for a super-convenient and powerful boost to your amino acid intake. Plus, theyre suitable for vegetarians and vegans toomaking them the perfect amino acid supplement for anyone following a plant-based diet. Whatever your fitness goal, these l-carnitine tablets have been formulated to help even your toughest workouts, as well as support a balanced diet.