Article Questions 10 Common Supplements for General Health, Backs 10mcg Winter Vitamin D
Updated
Updated · The Guardian · Jul 31
Article Questions 10 Common Supplements for General Health, Backs 10mcg Winter Vitamin D
3 articles · Updated · The Guardian · Jul 31
Summary
A new analysis says most popular supplements offer little benefit for generally healthy people, with evidence strongest only for specific deficiencies, life stages or targeted uses.
Multivitamins, magnesium and electrolytes drew particular skepticism: one large multivitamin trial improved older adults’ memory by only about a quarter of a word on a 20-word recall test, while electrolyte products were deemed unnecessary outside heavy fluid loss.
The article identifies narrower cases where supplements can help, including 10 micrograms of vitamin D daily in autumn and winter, algae-based omega-3s delivering 250-500mg EPA and DHA for non-fish eaters, and iron only after a blood test confirms need.
Creatine, collagen, fibre and ashwagandha may provide modest gains—such as small performance, skin, gut or stress benefits—but mainly for defined groups rather than the general population.
Across categories, the piece argues food should come first, urging diets rich in fruits, vegetables, whole grains, legumes, nuts, seeds and adequate protein instead of routine supplementation.