Daily vitamin C does not prevent colds for most people but may shorten them a little. Here is what the Cochrane review found, who benefits most, and how much you need.
Does Vitamin C Help a Cold? What Cochrane Actually Found
read more...
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.
Folate vs Folic Acid: Do You Need Methylfolate for MTHFR?
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.
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.
How Nutrient Absorption Changes After 50
Aging changes how you absorb a few key nutrients, especially B12 and vitamin D. Here is what shifts after 50, why it happens, and practical steps to stay on track.
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.
Common Medications That Can Lower Your Vitamin Levels
Metformin, acid reducers, and a few other common medications can slowly lower nutrient levels. Here is what the research shows and what to ask your prescriber.
Nutrition for Men Over 40: What Actually Matters
Forget the “Men’s 40+” hype. Here is what actually matters for men after 40: protein and muscle, heart health, vitamin D, and what multivitamin trials really found.
Choline: The Nutrient Most Americans Miss
Only about 8% of US adults get enough choline, and most multivitamins and prenatals contain little or none. Here is what it does and where to find it.
Eating Plant-Based? The Nutrients Worth Watching
B12 is non-negotiable on a vegan diet, and iodine, vitamin D, iron, zinc, and calcium deserve a plan too. Here is a practical checklist.
Can Vitamins Help You Sleep? Nutrients vs Sleep Aids
Magnesium and vitamin D have modest evidence for sleep, and melatonin is a hormone, not a vitamin. Here is what nutrients can and cannot do for your nights.
Postpartum Nutrition: What New Moms Need While Breastfeeding
Breastfeeding raises your needs for iodine and choline, and many prenatals fall short on both. Here is what to check on the label and what your baby needs too.