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
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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.
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.
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.
Eating Well in College on a Budget
You can eat well in college without much money or a real kitchen. Here are cheap staples, microwave meals, dining hall strategies, and campus resources worth knowing.
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.
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.
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.
How Long Does It Take to Recover From B12 Deficiency?
Blood markers improve in about a week, blood counts in about 8 weeks, and nerve symptoms take the longest. Here is a realistic B12 recovery timeline.
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.