l carnitine fumarate scholar google L-Carnitine (fumarate) form) 340 mg. The Nutraceutical Value of Carnitine
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Interrelated effects of L-lysine and other dietary factors on the gastrointestinal absorption of calcium 45 in the rat and chick

This limitation is mentioned in the Discussion section

A blinded study coordinator at each site enrolled and assigned participants to a kit number based on the web-based system output at the randomization visit

( 10.1016/j.biocel.2006.07.001) [DOI] [PubMed] [Google Scholar] Vaz FM, Wanders RJ.2002
