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In men with low selenium status, supplementation has improved sperm motility, a 1998 RCT in selenium-deficient Scottish men is the clearest example, and a 2018 meta-analysis linked selenium to a 3.30% rise in total motility

However, if you experience any persistent or severe reactions, such as swelling, difficulty breathing, or other concerning symptoms, its important to contact your healthcare provider immediately

Cross-sectional imaging of intestinal barrier dysfunction by confocal laser endomicroscopy can identify patients with food allergy in vivo with high sensitivity

Leon Shapiro Medical Director & Protocol Specialist Medically reviewed by Dr