man sports l-carnitine 1500 Liquid 1500, Fruit Punch, 16 oz (473 ml), ALLMAX L-Carnitine 1500 Heat by VMI

In adults, this amount was 3 grams/day, but we do not have a known upper limit for children, though its logical to say that it would be a fraction of the amount for adults

0,03 - 0,01 mg 9

Betaine, another derivative of choline, is involved in homocysteine synthesis and influences cholesterol levels (Leermakers et al., 2015)

It is very effective with a diet, you don't have to expect a miracle from it, it helps if someone follows a diet that would make them lose weight even without it

doi: 10.1007/s10545-006-0199-x, PMID: [DOI] [PubMed] [Google Scholar] 41.Salguero Olid A, Blanco Sanchez G, Alonso OA

But increasing the carnitine content inside muscle fibers is a very different biological challenge