Capsules · 60 capsules
Serving Size:
1 Capsule
Amount Per Serving:
Vitamin D3 (as Cholecalciferol; from Wild Harvested Lichen) ... 125 mcg
Zinc (as Amino Acid Chelate) ... 30 mg
Organic Whole Food Blend ... 100 mg
(Organic Elderberry Powder (Fruit), Organic Cranberry Powder (Fruit), Vaccinium uliginosum, Organic Elderberry Powder (Fruit), Organic Apple Powder (Fruit))
Vitamin K2 (Menaquinone-7 & Menaquinone-4) ... 90 mcg
Other Ingredients:
Methylcellulose Capsule
Take 1 capsule daily with 8 ounces of water or your favorite beverage. May be taken with or without food.
Do not exceed recommended dose. Pregnant or nursing mothers, children under 18 and individuals with a known medical condition should consult a physician before using this or any dietary supplement. Discontinue use two weeks prior to surgery. Please use caution if you have allergies or sensitivities to any of the listed ingredients. Made on equipment that also processes milk, eggs, fish, tree nuts and soy.
Source: Fullscript original manufacturer label · September 06, 2026. Formulas and labels can change. Check the packaging you receive.
Amen's Vitamin D, K2 & Zinc combines three nutrients that work in concert to support bone density, immune function, and calcium metabolism. This formulation pairs vitamin D3 with vitamin K2, a form clinically noted for directing calcium toward bones rather than soft tissue, alongside zinc for additional immune and cellular support. It's well-suited for adults looking to address multiple foundational nutrient needs in a single daily capsule.
Why It's Worth Considering: The D3/K2 pairing is a thoughtful combination, as K2 may help optimize how the body utilizes the calcium that vitamin D promotes for absorption, making this a more complete approach than vitamin D alone.
Take 1 capsule daily with 8 ounces of water or your favorite beverage. May be taken 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.
† 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.
