The deficiency epidemic is largely a product of the industrial food system — stripped grains, processed seed oils, synthetic fortification, and packaged products engineered to replace real food. Isolated nutrients were added back to compensate for what processing removed. The body does not recognize a fragment the same way it recognizes the whole. A nutrient in its original matrix arrives with cofactors, enzymes, and companion compounds that allow it to be used. Without them, the body either cannot complete the process or must draw on its own reserves to do so. Fortification and supplementation do not restore what was lost — they continue the same pattern of extraction. These entries point only to whole sources, because that is the only place the complete picture exists.
Vitamin A — Retinol
Fat-soluble · stored in liver
Deficiency shows up as
Natural sources
As beta-carotene (provitamin A — body converts)
Conversion of beta-carotene to retinol is poor in many people (thyroid issues, low bile, genetic variants). Animal-sourced retinol is directly usable. Fat is required for absorption of all fat-soluble vitamins.
Vitamin B1 — Thiamine
Water-soluble · depleted by alcohol, refined sugar, raw fish
Deficiency shows up as
Natural sources
Vitamin B2 — Riboflavin
Water-soluble · required for folate metabolism (MTHFR)
Deficiency shows up as
Natural sources
Vitamin B3 — Niacin
Water-soluble · NAD+ precursor · depleted by corn-based diets without lime treatment
Deficiency shows up as
Natural sources
Vitamin B5 — Pantothenic Acid
Water-soluble · essential for cortisol synthesis and CoA production
Deficiency shows up as
Natural sources
Vitamin B6 — Pyridoxine
Water-soluble · involved in 100+ enzymatic reactions · serotonin & dopamine production
Deficiency shows up as
Natural sources
Vitamin B7 — Biotin
Water-soluble · raw egg whites block biotin absorption (avidin)
Deficiency shows up as
Natural sources
Vitamin B9 — Folate
Water-soluble · works with B2, B6, B12 · MTHFR variants affect conversion
Deficiency shows up as
Natural sources
Label alert: Most products marketed as "folate" list folic acid in the ingredient panel — a synthetic form many people cannot convert. Even genuine methylfolate supplements arrive without the cofactors (B2, B6, B12, choline) that folate metabolism requires. Whole food sources carry the complete instruction.
Vitamin B12 — Cobalamin
Water-soluble · found only in animal foods · depleted by metformin, PPIs, oral contraceptives
Deficiency shows up as
Natural sources
Vitamin C — Ascorbic Acid
Water-soluble · required for collagen synthesis and iron absorption · not stored
Deficiency shows up as
Natural sources
Vitamin D — Calciferol
Fat-soluble hormone · made by skin from UVB · requires cholesterol and magnesium
Deficiency shows up as
Natural sources
Sunlight is the source, not a supplement.
Skin synthesis from midday UVB is how the body has made vitamin D for its entire evolutionary history — with regulatory feedback, sulfated forms, and cofactors that oral supplements do not replicate. Long-term supplement use has been associated with soft tissue calcification, kidney stones, and paradoxical bone loss.
The vitamin D supplement story is the same industry pattern.
Cholecalciferol — the active ingredient in most vitamin D supplements — is also the active ingredient in rodenticides like d-CON. It kills rats by causing fatal hypercalcemia. The same manufacturers producing vitamin D supplements produce the rodenticide and the pet vitamin formulas. Veterinarians note there is no antidote for vitamin D toxicity in animals. The same compound, sold to humans as essential health care, is used as poison bait for rodents. The fear of sun exposure drove millions to a supplement that accumulates in fatty tissue, takes years to clear, and causes the calcification and bone loss it was supposed to prevent. See Sunlight for the full picture.
Vitamin E — Tocopherols & Tocotrienols
Fat-soluble antioxidant · 8 natural forms · depleted by industrial seed oils
Deficiency shows up as
Natural sources
Vitamin K — K1 & K2
Fat-soluble · K1 from plants · K2 from fermented food and animal fat
Deficiency shows up as
Natural sources — K1
Natural sources — K2
Choline
Vitamin-like · essential for liver fat export, acetylcholine, cell membranes · often deficient in plant-dominant diets
Deficiency shows up as
Natural sources
Magnesium
Required for 300+ enzymatic reactions · depleted by stress, alcohol, PPI medications, refined food
Deficiency shows up as
Natural sources
Zinc
Not stored in body · depleted by phytic acid in grains, alcohol, chronic stress
Deficiency shows up as
Natural sources
Iron
Heme iron (animal) absorbs 15–35% · non-heme (plant) absorbs 2–20% · vitamin C increases absorption
Deficiency shows up as
Natural sources
Iodine
Required for thyroid hormone synthesis · depleted by fluoride, chlorine, bromide competition
Deficiency shows up as
Natural sources
Selenium
Required for T4→T3 thyroid conversion · glutathione peroxidase production · soil-depleted
Deficiency shows up as
Natural sources
Potassium
Depleted by diuretics, excessive sweating, alcohol, refined diet · works with sodium
Deficiency shows up as
Natural sources
Calcium
Requires vitamin D (from sunlight), vitamin K2, and magnesium to go where it belongs
Deficiency shows up as
Natural sources
Silica
Required for collagen crosslinking, bone matrix, arterial wall integrity · declines with age
Deficiency shows up as
Natural sources
Copper
Works in balance with zinc — excessive zinc supplementation depletes copper
Deficiency shows up as
Natural sources
Manganese
Required for mitochondrial superoxide dismutase (MnSOD) · bone formation · carbohydrate metabolism
Deficiency shows up as
Natural sources
Omega-3 — DHA & EPA
Long-chain forms only in marine foods · ALA (plant) converts poorly · DHA is primary brain structural fat
Deficiency shows up as
Natural sources
Isolated fish oil is typically rancid and pro-inflammatory.
Once extracted, concentrated, and encapsulated, omega-3 fats oxidize — producing lipid peroxides that are directly pro-inflammatory. Independent analyses find most commercial fish oil exceeds safe oxidation thresholds at time of sale. The REDUCE-IT trial used mineral oil (itself inflammatory) as placebo, inflating the apparent benefit. Whole fish delivers DHA and EPA in their natural phospholipid form, with selenium, iodine, CoQ10, and fat-soluble vitamins — the complete biological context. The isolated capsule provides a fragment that may be actively harmful. See Wellness Traps for more.
Phospholipids — PC, PE, PS
Primary structural component of every cell membrane · myelin · depleted by toxin exposure and aging
Deficiency shows up as
Natural sources
Glycine
Most abundant amino acid in collagen · conditionally essential · depleted by high muscle meat intake without connective tissue
Deficiency shows up as
Natural sources
Tryptophan
Precursor to serotonin and melatonin · requires B6 and iron for conversion · competes at blood-brain barrier
Deficiency shows up as
Natural sources
CoQ10 — Ubiquinol
Mitochondrial electron transport chain · antioxidant · depleted by statin medications · declines with age
Deficiency shows up as
Natural sources
Glutathione
Master antioxidant · made in the body from cysteine, glycine, glutamate · depleted by acetaminophen, alcohol, chronic illness
Deficiency shows up as
Natural sources (precursor foods)
Oral glutathione supplements are largely broken down in digestion before reaching cells. Feeding the body the precursors — cysteine, glycine, glutamate — through whole food is how the body makes and sustains its own supply.
IV glutathione and cancer — a serious concern.
Glutathione is also how cancer cells protect themselves from oxidative destruction. High-dose IV glutathione floods the system with the same antioxidant shield aggressive tumors use to survive chemotherapy and evade immune destruction. Elevated intracellular glutathione is a documented marker of breast cancer metastatic potential and drug resistance. IV dosing bypasses the body's own regulatory feedback. Whole food precursors allow the body to produce what it needs — IV administration removes that control entirely. See Wellness Traps for fuller context.
Trace Minerals — The Full Spectrum
90+ trace elements required in small amounts · depleted by RO filtration, soil depletion, processed diet
Deficiency shows up as
Natural sources
Quinton Marine Plasma (isotonic seawater) contains the same mineral profile as human plasma. It is the most complete natural mineral source available. Particularly relevant for those using RO water — add minerals back in their natural ionic form.
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