Low vitamin D doesn’t just weaken bones; it can sabotage sexual health, disrupt key biological defenses, and make common ED treatments less effective, according to new research. Study: Vitamin D ...

L-arginine may help improve erection quality and is generally safe to use. Vitamin D deficiency is linked to a higher risk of erectile dysfunction. Always talk to a healthcare provider before trying ...

Suzanne Fisher, RD, is a registered dietitian and licensed nutritionist with nearly 35 years of experience in evidence-based nutrition and exercise physiology. If you don’t get enough vitamin D from ...

Are we overdoing it with vitamin D tests and supplements? Katie Ward, DNP, discusses recent findings that suggest that natural sunlight and a balanced diet might just be enough to satisfy our vitamin ...

Nearly a quarter of Americans are estimated to have a vitamin D deficiency. Why is that? A 2022 study of National Health and Nutrition Examination Surveys (NHANES) data estimated that about 22% of ...