Have an MTHFR variant? The CDC says you can still process folic acid. Here is how folate, folic acid, and methylfolate differ and whether testing is worth it.
Folate vs Folic Acid: Do You Need Methylfolate for MTHFR?
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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.
Vitamin E: Why the Megadose Era Ended
Adults need 15 mg of vitamin E a day. Here is why 400 IU megadoses fell out of favor after large trials, what SELECT found, and how to get enough from food.
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.
Does My Child Need a Multivitamin?
Most healthy kids who eat a varied diet do not need a daily multivitamin. Here is when a supplement makes sense, how to handle picky eating, and why safe storage matters.
Does Biotin Work for Hair? Plus the Lab Test Warning Most People Miss
Biotin is everywhere in hair supplements, but the evidence for healthy people is thin. Here is what research shows, and why high doses can throw off important lab tests.
Taking a GLP-1? How to Protect Your Nutrition
Eating less on a GLP-1 means every bite counts. Here is what research says about protein, vitamin D, B12, iron, and so-called GLP-1 supplements.
Is Fish Oil Worth Taking? What the VITAL Trial Found
The VITAL trial found fish oil did not lower major cardiovascular events overall, but heart attacks fell 28%. Here is what that means for you, plus the fish oil vs algae oil question.
Do You Need Vitamin K2 With Your D3? What the Evidence Shows
The internet says never take D3 without K2. The research is more nuanced. Here is what trials show about vitamin K, bones, arteries, and vitamin D dosing.
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.
How Nutritional Gaps Affect Energy, Focus, and Daily Performance
Eating reasonably well but still running low by mid-afternoon? Small nutritional gaps may be part of the story. Here is what the research says.
Why Most Multivitamins Have Too Much of What You Don’t Need
Bigger numbers on a label do not mean better nutrition. Here is why so many multivitamins overshoot the Daily Value and why that can backfire.
What to Look for on a Supplement Label (And What to Avoid)
Supplement labels are packed with numbers and claims. Here is how to read one, what to look for, and which red flags to avoid.