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L-carnitine side effects are generally mild but may include: Nausea, vomiting, or abdominal cramps Diarrhoea or heartburn A 'fishy' body odour (due to trimethylamine production by gut bacteria) Rarely, restlessness or sleep disturbances High doses of L-carnitine (above 3g daily) have been associated with increased seizure frequency in individuals with seizure disorders

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[1],[41] Further, topical compositions containing S-acyl glutathione (about 0.110% by weight) or S-palmitoyl glutathione (about 39% by weight) admixed with other depigmenting and anti-oxidant substances have been prepared

The Lancet Neurology