now sports liquid l-carnitine Foods Sports, L-Carnitine, Citrus, 16 fl oz (473 ml) : Target citric acid Now Foods Triple Strength L-Carnitine

If one of these building blocks is lacking in sufficient amounts, the body's production can be limited

Studies have shown that carnitine deficiency is associated with a variety of metabolic diseases, including diabetes, obesity, cardiovascular disease, and chronic kidney disease

These variations are discussed in the book: See the Buy the Book page for other purchase options.

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doi: 10.5596/c14-016 20

Obviously it doesn't replace exercise and a good diet, and only provides a little extra at least for me, but it helps considering the slips in diet derived from our lifestyle