60 A meta-analysis of three randomized controlled trials found selenium supplementation improved sperm concentration, motility, and morphology (size, shape, and structure)
This slowing contributes to the appetite suppression that drives weight loss and the postprandial glucose-lowering effect, and it also drives most of the gastrointestinal side effect profile.[1],[2] A 2025 review in the Journal of Clinical Endocrinology & Metabolism summarizes the published evidence: GLP-1 receptor agonists impact gastric, intestinal, and gallbladder motility simultaneously, with effects on gastric fundus relaxation, antral contractility inhibition, increased pyloric tone, and reduced small intestinal motility.[3] The path from this mechanism to constipation is straightforward
50 in-clinic Book your appointment B12 Vitamin Injection Price & Availability Our vitamin booster injections are available at your home, hotel, or you can come and see us at one of our London clinics
Hyaluronic acid fillers can be injected into the penis to increase girth temporarily