164 In a randomized crossover trial in 50 subjects with male infertility, one month of treatment with a supplement containing pine bark extract plus L-arginine (an amino acid precursor to nitric oxide which regulates blood vessel function) increased semen volume, sperm number and concentration, motility, and vitality, and improved sperm morphology compared with placebo
HowickJKoletsiDIoannidisJPAMadiganCPandisNLoefMet al
The Bottom Line: Compelling Mechanisms Demand Rigorous Human Investigation BPC-157 presents a fascinating scientific paradox: extensive preclinical evidence spanning three decades demonstrates pleiotropic effects across multiple neurotransmitter systems, with antidepressant efficacy exceeding standard drugs in animal models, anxiolytic effects without dependence liability, neuroprotection in stroke and neurodegeneration models, and reversal of schizophrenia-like cognitive deficits
noted that the research on body losses is relatively old, inconsistent, and it might not be further clarified due to the ethical concerns with using radioisotopes for tracking B12 in the body