is l-carnitine hard on the kidneys Role of in Kidney Disease and Related Metabolic Dysfunctions NuEthix Formulations Lipsomal L-Carnitine Supplement
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International Society of Sports Nutrition Position Stand: Creatine Supplementation and Exercise

Chee, C., Shannon, C

It may support gut-barrier function in specific contexts, but supplement content should not imply that it treats IBS, Crohns disease, leaky gut or other medical conditions unless the claim is legally permitted in the target market
The L-carnitine dosage was safe and well tolerated (Ciacci 2007)
