Vitamin D Deficiency
Bone, immune, and mood implications.
Ranked by evidence strength across reported benefits.
Magnesium
Essential cofactor in 300+ enzymatic reactions, from ATP production to muscle relaxation.
Vitamin D3
Steroid hormone precursor regulating ~5% of the human genome — bone, immune, and hormonal health.
N-Acetyl Cysteine (NAC)
Glutathione precursor with mucolytic, hepatoprotective, and psychiatric uses.
Vitamin A (Retinol)
Fat-soluble vitamin essential for vision, immune function, and epithelial integrity.
Vitamin C
Water-soluble antioxidant, collagen cofactor, and immune supporter.
Garlic
Culinary bulb with cardiovascular benefits primarily via allicin and aged-garlic compounds.
Lactobacillus Probiotics
Lactic acid bacteria supporting gut barrier, immunity, and women's urogenital health.
Beta-Glucan
Polysaccharide that primes innate immune cells (yeast) or lowers cholesterol (oat).
Vitamin D3 (Cholecalciferol)
Preferred form for raising 25(OH)D — the active form your skin makes from sun.
Aged Garlic Extract (Kyolic)
Odorless aged garlic with S-allyl-cysteine for vascular health.
Turkey Tail
Beta-glucan-rich mushroom used as immune adjunct in cancer (PSK approved in Japan).
Saccharomyces Boulardii
Beneficial yeast used to prevent and treat several types of diarrhea.
Andrographis
Bitter herb with strong RCT evidence for URI symptom reduction.
Strontium
Trace element that displaces Ca in bone and was approved (ranelate) for osteoporosis.
Potassium Citrate
Alkalinizing K salt used for kidney stone prevention and bone health.
Calcium Citrate
Best-absorbed calcium salt — does not require stomach acid.
Zinc Gluconate
Most common over-the-counter zinc form — affordable, moderate bioavailability.
Vitamin D2 (Ergocalciferol)
Plant-derived prescription D — high doses (50,000 IU) used for rapid deficiency correction.
Andrographis (KalmCold)
Standardized andrographolide for acute upper respiratory infections.
Pelargonium sidoides (Umckaloabo)
South African geranium root for acute bronchitis and URIs.
Vitamin D3 (Maintenance)
Daily maintenance dose for non-deficient adults.
Vitamin D3 (Repletion)
Repletion dose for deficiency under medical supervision.
Selenium-Enriched Yeast
Yeast-bound selenomethionine — form used in major chemoprevention trials.
Strontium Ranelate (Ref)
Reference strontium salt used as anti-osteoporotic drug.
Vitamin K1 (Phylloquinone)
Leafy-green K1 essential for hepatic coagulation factors.
Zinc
Cofactor for ~300 enzymes — critical for testosterone, immune function, and DNA synthesis.
Vitamin K2 (MK-7)
Activates the proteins that direct calcium into bone — not arteries.
L-Glutamine
Most abundant amino acid; primary fuel for enterocytes and immune cells.
Collagen Peptides
Hydrolyzed protein supplying glycine, proline, and hydroxyproline for connective tissue.
American Ginseng
Cooler adaptogen with stronger evidence for blood sugar and cold-flu prevention.
Soy Isoflavones
Phytoestrogens with mild SERM effects on bone, hot flashes, and lipids.
Licorice Root
Adrenal-supporting herb; chronic high-dose causes pseudo-aldosteronism.
Bovine Colostrum
First milk rich in IgG, lactoferrin, and growth factors for immune and gut support.
Lactoferrin
Iron-binding protein with antimicrobial and immunomodulating effects.
Vitamin K2 (MK-7)
Long-half-life K2 — directs calcium to bone and away from arteries.
Reishi
Adaptogenic mushroom used for immune balance, sleep, and stress.
Quercetin
Flavonoid with antihistamine and senolytic effects; pairs with bromelain or vitamin C.
Vitamin D3 + K2 Synergy Note
Combined fat-soluble vitamins addressing calcium destination (bone vs artery).
Calcium
Major bone mineral; also critical for muscle contraction and nerve signaling.
Selenium
Trace mineral essential for glutathione peroxidase and thyroid hormone activation.
Manganese
Trace mineral cofactor for SOD, gluconeogenesis, and bone formation.
Cordyceps
Medicinal fungus studied for aerobic capacity and immune modulation.
Shiitake (Lentinan)
Culinary mushroom whose beta-glucan lentinan is an approved injectable immune adjunct.
Olive Leaf Extract
Mediterranean herb with antihypertensive and immune effects.
Bifidobacterium Probiotics
Dominant probiotic genus in the colon; supports immune and gut barrier.
Elderberry
Anthocyanin-rich berry used to shorten influenza and URI symptoms.
Echinacea
Native American herb used for URI prevention/duration reduction.
Cranberry
Berry with PACs that inhibit E. coli adhesion to urothelium for UTI prevention.
Aged Garlic Extract (Kyolic)
Standardized aged garlic — modest BP and cholesterol benefits.
Strontium Citrate
Mineral that substitutes for calcium in bone — controversial but increases BMD measurements.
Zinc Acetate
Lozenge form shown to shorten cold duration when used at first symptoms.
Vitamin K2 (MK-4)
Short-acting K2 form used at high dose in Japanese osteoporosis protocols.
Icariin (Horny Goat Weed)
Active flavonoid from Epimedium acting as PDE5 inhibitor.
Agaricus blazei
Brazilian mushroom rich in β-glucans for immune modulation.
Maitake D-Fraction
Standardized β-glucan from Grifola frondosa for immune support.
Spirulina (Extra Profile)
Cyanobacterium with phycocyanin for allergy and immunity.
Potassium Bicarbonate
Alkaline potassium salt that reduces bone resorption.
Zinc Bisglycinate (High-Bio)
Chelated zinc with superior absorption and tolerability.
Manganese (Extra)
Mn cofactor for SOD2 mitochondrial antioxidant defense.
Boron (Extra)
Trace mineral that modulates steroid hormones and bone.
Choline-Stabilized Orthosilicic Acid (ch-OSA)
Highly bioavailable silica for hair, skin, and bone.
Butterbur
Petasites hybridus extract for migraine prophylaxis and allergic rhinitis.
Cat's Claw
Uncaria tomentosa for joint pain and immunity.
Agaricus Blazei
Brazilian sun mushroom for immune support.
Phellinus Linteus
Meshima mushroom with hispolon for immune support.
PEA (Palmitoylethanolamide)
Endogenous fatty acid amide for pain and inflammation.
L-Lysine
Essential amino acid for collagen and HSV prevention.
Vitamin D3 + K2
Synergistic combo for calcium routing.
Bamboo Silica
Plant-based silicon for skin and bones.
Choline-Stabilized OSA
Bioavailable silicon form.
Selenium (Selenomethionine)
Antioxidant trace element for thyroid.
Quercetin Phytosome
Lecithin-complexed quercetin.
Quercetin + Bromelain
Anti-inflammatory pair for allergies.
Stinging Nettle Leaf
Urtica dioica leaf for allergies and joint pain.
Isoquercetin
Highly bioavailable quercetin glycoside.
Luteolin
Flavone with anti-inflammatory effects.
Baicalin
Scutellaria baicalensis flavonoid.
Pelargonium Sidoides
South African geranium for bronchitis.
EPs 7630
Standardized Pelargonium extract.
Echinacea Purpurea
Coneflower for upper respiratory infections.
Echinacea Angustifolia
Narrow-leaf coneflower for immune support.
Genistein
Soy isoflavone with bone benefits.
Lion's Mane Fruiting Body
Hericinones-rich beta-glucan source.
Agarikon (Fomitopsis officinalis)
Antiviral polypore mushroom.
Poria Cocos
TCM mushroom for sleep and immunity.
Oyster Mushroom
Pleurotus ostreatus with ergothioneine.
Butterbur Ze 339
PA-free butterbur for allergic rhinitis.
Marshmallow Root
Althaea officinalis mucilage for cough.
Cranberry Extract
Vaccinium macrocarpon for UTI prevention.
Olive Leaf (Standardized Oleuropein)
High-oleuropein extract.
Lauric Acid
Coconut MCFA with antimicrobial activity.
Black Seed Oil (Nigella sativa)
Thymoquinone for immune and metabolic health.
Thymoquinone
Active black seed compound.
Propolis
Bee glue with caffeic acid phenethyl ester.
Bee Pollen
Pollen collected by bees.
Manuka Honey
Leptospermum honey with MGO.
Bromelain
Pineapple proteolytic enzyme.
Boron Citrate
Boron for hormone modulation.
Ginger Extract (Zingiber)
Standardized ginger for nausea and inflammation.
Galangal (Alpinia)
Thai ginger relative for inflammation.
Holy Basil (Tulsi)
Ocimum sanctum adaptogen.
Holy Basil Eugenol
Active constituent of tulsi.
Liposomal Vitamin C
Phospholipid-encapsulated vitamin C.
Ascorbyl Palmitate
Fat-soluble vitamin C ester.
Sodium Ascorbate
Buffered vitamin C form.
Bovine Colostrum
First milk with growth factors.
Chlorella
Green algae with chlorophyll.
Amla (Indian Gooseberry)
Phyllanthus emblica vitamin C source.
Black Cumin Seed Oil
Nigella sativa oil.
Cod Liver Oil
Traditional A, D, omega-3 source.
Boron
Trace mineral implicated in steroid hormone metabolism and bone integrity.
Eleuthero
Adaptogen used to support stamina, immune function, and stress resilience.
Boron
Trace mineral with modest effects on free testosterone and bone mineralization.
Quercetin
Flavonoid with antihistamine, anti-viral, and senolytic activity.
Silica (Silicon)
Trace element involved in collagen and connective tissue crosslinking.
Horny Goat Weed
PDE5-inhibiting flavonoid (icariin) used for libido and erectile support.
Chaga
Birch-tree mushroom rich in melanin, betulin, and antioxidants.
Monolaurin
Coconut-derived monoglyceride with antimicrobial properties against enveloped viruses.
Horsetail Extract
Silica-rich herb traditionally used for hair, nail, and connective tissue support.
Vitamin C (Harm-Reduction Antioxidant)
Water-soluble antioxidant — quenches dopamine quinone and other reactive metabolites.
Zinc Picolinate
Zinc chelated to picolinic acid — one of the most bioavailable oral forms.
Zinc Bisglycinate
Glycine-chelated zinc — high absorption and very gentle on the stomach.
Liposomal Glutathione
Phospholipid-encapsulated GSH — protects from gut breakdown for systemic delivery.
Chinese Skullcap
Flavonoid-rich root used for anxiety and inflammation.
Thymulin (Reference)
Zinc-dependent thymic peptide that matures T-cells.
Calcium AEP (Membrane Calcium)
Cell-membrane-targeted form of calcium claimed for autoimmune support.