Weight loss in men with obesity has been shown to improve sperm motility and total motile count within 12 to 24 weeks of sustained caloric restriction
Nauck MA, Heimesaat MM, Orskov C, Holst JJ, Ebert R, Creutzfeldt W (1993) Preserved incretin activity of glucagon-like peptide 1 [7-36 amide] but not of synthetic human gastric inhibitory polypeptide in patients with type-2 diabetes mellitus
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Mind you, I am not being optimistic here, this is not a everyone will make better choices in their diet assessment
The acetyl group that is part of acetyl-L-carnitine contributes to the production of the neurotransmitter acetylcholine, which is required for mental function
Rosolov, H., Simon, J., Mayer, O., Jr, Racek, J., Dierz, T., & Jacobsen, D