Capsules · 60 capsules
Supplement Facts — Serving size: 1 capsule. Vitamin D (5,000 IU): 125 mcg. Vitamin K (as menaquinone-7): 90 mcg. Ancient Nutrients TCM Blend: 577 mg — beef bone broth, organic astragalus root extract, bovine liver, chicken bone broth, organic polygala root extract, organic schisandra berry extract, organic reishi mushroom extract, lion's mane mushroom extract, wild hake roe. Other ingredients: Saccharomyces cerevisiae, gelatin.
Adults take 1 capsule daily with 8 ounces of water or another beverage, with or without food.
Consult your healthcare practitioner before use, especially if pregnant, nursing, taking anticoagulant medication, or under medical supervision. Do not use if opened or tampered with. Keep out of reach of children. Store in a cool, dry place.
Source: Fullscript exact-SKU catalog label · September 06, 2026. Formulas and labels can change. Check the packaging you receive.
Ancient Nutrition Vitamin D delivers this essential fat-soluble nutrient in capsule form, supporting bone integrity, immune function, and mood balance. Formulated in line with Ancient Nutrition's whole-food-inspired approach, it's well-suited for individuals looking to address common vitamin D insufficiency through a daily supplement.
Why It's Worth Considering: Ancient Nutrition emphasizes whole-food and fermented ingredient processing, which may support nutrient cofactor retention compared to isolated synthetic forms. The 60-capsule count offers a two-month supply at standard dosing.
Adults take 1 capsule daily with 8 ounces of water or another beverage, with or without food.
| Feature | D3 (Cholecalciferol) | D2 (Ergocalciferol) | D3 + K2 Combo |
|---|---|---|---|
| Source | Animal (lanolin/lichen) | Plant/fungal | Animal + bacterial |
| Potency | 87% more effective at raising serum D | Baseline | Same as D3 + K2 synergy |
| Half-Life | ~2-3 weeks | ~2-3 days | ~2-3 weeks |
| Best For | General supplementation | Vegan-only option | Bone + cardiovascular health |
| Evidence | Strong (gold standard) | Moderate | Strong (synergistic) |
Most functional medicine practitioners recommend 5,000 IU daily for adults with normal BMI, and up to 10,000 IU for those with obesity or severe deficiency. The Endocrine Society recommends maintaining serum 25(OH)D levels between 40-60 ng/mL. Test your levels every 3-6 months.
Yes. D3 (cholecalciferol) is 87% more effective at raising and maintaining serum vitamin D levels compared to D2 (ergocalciferol). D3 also has a longer half-life. D2 is only preferred by strict vegans who cannot use lanolin-sourced D3, lichen-based D3 is the vegan alternative.
Yes, especially at doses above 2,000 IU. Vitamin D3 increases calcium absorption from food. Without K2, that calcium can deposit in arteries instead of bones. K2 (MK-7 form) activates osteocalcin (puts calcium in bones) and matrix GLA protein (keeps calcium out of arteries).
Toxicity is rare below 10,000 IU/day in healthy adults but possible with chronic high-dose use without monitoring. Symptoms of excess include hypercalcemia (nausea, kidney stones, confusion). Always pair high-dose D3 with K2 and test 25(OH)D levels every 3-6 months.
Take with your largest meal containing fat, D3 is fat-soluble and absorption increases 30-50% when taken with dietary fat. Morning or afternoon is preferred over evening, as some studies suggest late-night D3 may interfere with melatonin production.
Serum 25(OH)D typically rises within 1-2 weeks of supplementation. Reaching optimal range (50-80 ng/mL) takes 2-3 months at 5,000 IU/day from a deficient baseline. Higher loading doses (10,000 IU for 8 weeks then maintenance) can accelerate this.
No significant interactions identified. Always consult your healthcare provider.
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
