Immunity
Zinc for Colds: Does It Work, Which Form and How Much
What the trials show about zinc and cold duration, which forms and doses make sense, who is at risk of deficiency, and why high doses threaten copper status and smell.
6 min read
#minerals
3 articles
Nutrition
Calcium: How Much You Need and How to Get It Without Dairy
Calcium requirements by age, the best dairy and plant sources, why vitamin D and protein matter, and who actually needs a supplement rather than taking one just in case.
6 min read
Supplements
Magnesium: Forms, Doses and Who Needs It
What magnesium does, how much you need by age and sex, why a blood test tells you almost nothing, and how citrate, glycinate and oxide really compare.
12 min read