Vitamins & Minerals
Vitamin and trace-mineral status, from D and B12 to zinc and selenium.
2 conditions7 guides24 markers
Conditions
ConditionsVitamin B12 deficiency: symptoms, causes, and why nerve damage can come firstThe symptoms, the causes, and why a normal blood count is not the all-clear for low B12.Read ConditionsVitamin D deficiency: signs, causes, and why it's usually silentA 25-hydroxyvitamin D below 20 ng/mL is common and usually causes no symptoms at all. Here is what the number means, what raises your risk, and who is worth testing.Read
Guides
CompoundsVitamin B12: how much to take, which form, and whether you need injectionsWhat B12 does, who runs low, and how to take it, including why an oral supplement works for most people and why a blood test comes before the bottle.Read CompoundsZinc supplements: how much to take, what works, and the copper catchHow much to take, whether it does anything for colds, and why copper, not toxicity, is the real ceiling.Read CompoundsVitamin D supplements: how much, which form, and whether you need oneThe 25-OH blood test tells you whether you are low. D3 raises it more reliably than D2, it works best with a meal, and because your body stores it, more is not better.Read CompoundsMagnesium supplements: which form, how much, and when they helpThe form you pick decides how much you absorb. What magnesium genuinely helps, who tends to run low, and how to take it without tipping into diarrhea.Read LearnSupplements, explained: how to choose one, and when your labs point to a gapA supplement is regulated as food, not a drug, so no one proved it safe, effective, or accurately labeled before it sold. How to read the bottle, respect the upper limit, and let your labs, read with your clinician, guide what you take.Read CompoundsFolate and folic acid: how much, which form, and the B12 catchThe one use with airtight evidence is pregnancy. Everywhere else the honest move is to check for a real gap first, because folate on its own can hide a vitamin B12 deficiency while nerve damage keeps going.Read CompoundsVitamin C: what it does, how much you need, and where it actually helpsIt will not stop a cold, but paired with a plant-iron meal it can multiply how much iron you absorb, with the real numbers on dose, colds, and safety.Read
Markers
25-Dihydroxyvitamin1,25-Dihydroxyvitamin D25-Hydroxyvitamin25-Hydroxyvitamin DCSUChromiumCSCopperFERFerritinFRBCFolateFSFolateB12HolotranscobalaminHPHomocysteine24hIodineMRBCMagnesiumMSMagnesium, SerumMWBManganeseMMAMethylmalonic AcidSSPSeleniumVRVitamin AB1Vitamin B1B12Vitamin B12B2Vitamin B2B6Vitamin B6VCAAVitamin CVEAVitamin EK1Vitamin KZSPZinc
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