Think of it like a carton of milk
In healthy individuals, L-carnitine can be produced in the body in sufficient amounts, but daily needs are usually met from the combination of endogenous synthesis and dietary intake [61,62]
Limited clinical data exist supporting L-carnitine's use in the management of mitochondrial dysfunction related to aging and apoptosis, AIDS-related dementia complex, drug-induced anemia, bipolar depression, cachexia, cardiovascular disease, dyslipidemia, dysthymic disorder, fatigue, drug-induced hepatotoxicity, intermittent claudication, migraine prophylaxis, muscle cramps, and drug-induced peripheral neuropathy
There is huge demand, but producing peptide drugs in large quantities is proving a challenge for Novo and Lilly