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Peripheral serotonin synthesis as a new drug target

Neuronutritional Approach to Fibromyalgia Management: A Narrative Review

In a randomized, placebo-controlled study of 495 patients with intermittent claudication, 2 g/day of propionyl-L-carnitine for 12 months significantly increased maximal walking distance and the distance walked prior to the onset of claudication in patients whose initial maximal walking distance was less than 250 meters (m), but no effect was seen in patients who had an initial maximal walking distance greater than 250 m (65)

M., Wanders R

Your body can absorb more l-carnitine from meat than from supplements, which makes it less harmful as that means less of it ends up in the colon