Skip to main content

Food · free course

Vitamins & Minerals

Micronutrients are the spark plugs of your metabolism — tiny amounts that decide whether thousands of enzymes fire or stall. This track covers what each one does, who genuinely runs low, how much you actually need (and can overdo), and how to get them from food first.

12 lessons · about 82 minutes

  1. 01What micronutrients are — and why 'micro' isn't 'minor'Cofactors that make your enzymes work: macro fuel vs micro spark plug.5 min
  2. 02Fat-soluble vs water-solubleWhere vitamins are stored, which ones can build up, and timing with food.6 min
  3. 03The nutrients people actually run low onThe genuine, common shortfalls — and what deficiency really does.7 min
  4. 04RDA vs optimal vs upper limitWhy 'enough to avoid disease' isn't the whole story — and why more isn't better.6 min
  5. 05Bioavailability & food-firstWhy how much you absorb beats how much you eat — and when a supplement earns its place.7 min
  6. 06Vitamin D — the sunshine hormone you're probably low onWhy D is the most common shortfall, D3 vs D2, the K2 + magnesium team, and how to test it.7 min
  7. 07Magnesium — the 300-enzyme mineral most people missA cofactor for hundreds of reactions, which forms actually absorb, and why a blood test misleads.7 min
  8. 08Omega-3 (EPA & DHA) — fats that act like nutrientsAnti-inflammatory fats for brain and heart, the ALA conversion problem, the omega-3 index, and fish vs algae.7 min
  9. 09Iron, B12 & folate — the blood and energy trioHeme vs non-heme iron, who's at risk, B12 forms, and folate vs folic acid.8 min
  10. 10Zinc, selenium & iodine — trace minerals, big jobsTiny amounts running immunity and thyroid — with tight upper limits and real soil variability.7 min
  11. 11Calcium, potassium & the electrolytesBone vs the potassium most people miss, the sodium–potassium balance, and why food beats pills.7 min
  12. 12Antioxidant vitamins (A, C, E) & carotenoidsWhat they do, the honest 'more isn't better' story (CARET/ATBC), and food vs isolated pills.8 min