Most men and women after menopause need only 8 mg of iron a day. Here is who is better off with an iron-free multivitamin, who still needs iron, and how to tell.
Multivitamin Without Iron: Who Should Choose One and Why
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The Vitamin Armor Blog
Science-backed guidance on vitamins, minerals, and daily supplementation. Written for athletes, active adults, and anyone who wants to make informed decisions about what they put in their body.
Potassium: The Mineral Most Americans Do Not Get Enough Of
Most adults fall short on potassium. Here is how much you need, the foods that beat bananas, why supplements stop at 99 mg, and who should be careful.
Calcium Supplements and Heart Risk: What to Know
Some studies linked calcium pills to heart attacks, while others found no effect. Here is what the evidence says, how much calcium you need, and why food comes first.
Iodine and Selenium: The Thyroid Minerals
Your thyroid depends on iodine and selenium, but both are easy to under- or overdo. Here is how to get enough from food, salt, and Brazil nuts without going too far.
Water or Electrolytes? A Summer Training Hydration Guide
For most workouts under an hour, water is enough. Here is when electrolytes help, how to measure your sweat rate, and why overdrinking is a real risk.
Should You Take Iron Without a Blood Test? What Ferritin Tells You
Tired and thinking about iron pills? Here is why a quick ferritin test should come first, who is most likely to be low, and how to make iron treatment work better.
How Much Zinc Is Too Much? Immune Support Without Overdoing It
Zinc is in lozenges, gummies, and most multivitamins, so it is easy to overdo. Here is how much you need, where the limit is, and what the cold research really shows.