Get the App
AG1 D3 + K2 supplement bottle
AG1

D3 + K2 Review

What We Researched
2 active ingredients analyzed · 2 inactive ingredients decoded · 3 brand certifications checked · Page generated: Sep 2026
100
Product Score Excellent
80
Brand Score Good

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin K 100 mcg —
Vitamin D3 25 mcg —
Bioavailability Excellent

Absorption Rating

  • Vitamin K Good
  • Vitamin D3 Good
Other Ingredients Excellent

Fillers & Additives

  • Mixed Tocopherols
  • MCT Oil
Efficacy Excellent

Dosage Analysis

  • Vitamin K 100 mcg Effective
  • Vitamin D3 25 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin K 100 mcg
Vitamin D3 25 mcg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Mixed Tocopherols Safe

Prevents oxidation and rancidity in oil-based supplements.

MCT Oil Safe

Helps dissolve and enhance absorption of fat-soluble ingredients.

Brand Trust Report
AG1

· drinkag1.com/

Certifications

3 certifications
NSF Certified for Sport Supporting evidence unavailable
NSF Contents Certified Supporting evidence unavailable
NSF Certified Supporting evidence unavailable

Transparency

3 claims
Third Party Testing Claim — True Brand claim; evidence unavailable
Testing Lab Disclosure — True Brand claim; evidence unavailable
Contains Proprietary Blend — True Brand claim; evidence unavailable
Related Supplements
Tru Niagen Tru Niagen Pro 1000 mg
Tru Niagen Tru Niagen Pro 1000 mg
Product 100 Brand 100
Jamieson Extra Strength D3 2500 IU
Jamieson Extra Strength D3 2500 IU
Product 100 Brand 100
Gaia Herbs Hibiscus Flower Liquid Phyto-Caps
Gaia Herbs Hibiscus Flower Liquid Phyto-Caps
Product 100 Brand 100
Gaia Herbs Olive Leaf Liquid Phyto-Caps
Gaia Herbs Olive Leaf Liquid Phyto-Caps
Product 100 Brand 100
Nature's Way Sambucus Zero Sugar Traditional Immune Syrup (Elderberry
Nature's Way Sambucus Zero Sugar Traditional Immune Syrup (Elderberry
Product 100 Brand 100
Nature's Way Black Elderberry
Nature's Way Black Elderberry
Product 100 Brand 100
Frequently Asked Questions
Is AG1 D3 + K2 a good supplement?

AG1 D3 + K2 received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 2 active ingredients with 600 servings per container. All 2 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, AG1, holds a brand trust score of 80/100.

What are the ingredients in AG1 D3 + K2?

AG1 D3 + K2 contains 2 active ingredients: Vitamin K (100 mcg), Vitamin D3 (25 mcg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is AG1 D3 + K2 safe to take?

GoodSupp reviewed the inactive-ingredient data available for AG1 D3 + K2. All 2 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is AG1 a trustworthy supplement brand?

AG1 receives a brand trust score of 80/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

Download on App Store Browse All Supplements
Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.