Legion Vitamin D+K supplement bottle
Legion

Vitamin D+K Review

What We Researched
3 active ingredients analyzed · 4 inactive ingredients decoded · 5 brand certifications checked · Last updated: Aug 2026
95
Product Score Excellent
92
Brand Score Excellent

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 D3 (as Cholecalciferol) 50 mcg 250%
Vitamin K1 (as Phytonadione) 100 mcg 83%
Vitamin K2 (as Menaquinone-7) 180 mcg 150%
Bioavailability Very Good

Absorption Rating

  • Vitamin D3 (as Cholecalciferol) Good
  • Vitamin K1 (as Phytonadione) Fair
  • Vitamin K2 (as Menaquinone-7) Good
Other Ingredients Excellent

Fillers & Additives

  • Hypromellose (Veggie Capsule)
  • Cellulose
  • Silica
  • Magnesium Stearate
Efficacy Excellent

Dosage Analysis

  • Vitamin D3 (as Cholecalciferol) 50 mcg Effective
  • Vitamin K1 (as Phytonadione) 100 mcg Effective
  • Vitamin K2 (as Menaquinone-7) 180 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin D3 (as Cholecalciferol) 50 mcg 250%
Vitamin K1 (as Phytonadione) 100 mcg 83%
Vitamin K2 (as Menaquinone-7) 180 mcg 150%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Hypromellose (Veggie Capsule) Safe

It is used to encapsulate supplement ingredients.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Brand Trust Report
Legion

Founded 2014 · Clearwater, FL, USA · 94 products · legionathletics.com/

Certifications

5 certifications
Labdoor Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Nsf Gmp Verified Source
NSF Certified Verified

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
Testing Lab Disclosure — Verified Source

Violation History

4 incidents
Fda Warning Structure/function claims on a creatine product suggesting it is intended for use as a drug.2024-05-02Source
Lawsuit Pulse pre-workout drinks were alleged to contain approximately 85 calories per serving, contrary to the 10 calories stated on the label.2022Source
Fda Warning Unsubstantiated claims for Coronavirus prevention and treatment.2020-04-21Source
Prop 65 Lead2019-09-24Source
Related Supplements
Frequently Asked Questions
Is Legion Vitamin D+K a good supplement?

Legion Vitamin D+K received a product quality score of 95/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 3 active ingredients with 60 servings per container. All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Legion, holds a brand trust score of 92/100 with 5 verified certifications including Labdoor, Fda Gmp Inspections, Non Gmo Project, Nsf Gmp.

What are the ingredients in Legion Vitamin D+K?

Legion Vitamin D+K contains 3 active ingredients: Vitamin D3 (as Cholecalciferol) (50 mcg), Vitamin K1 (as Phytonadione) (100 mcg), Vitamin K2 (as Menaquinone-7) (180 mcg). Notable high-dose ingredients include Vitamin D3 at 250% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Legion Vitamin D+K safe to take?

Legion Vitamin D+K has been analyzed for ingredient safety across all its components. All 4 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Legion a trustworthy supplement brand?

Legion receives a brand trust score of 92/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2014 and headquartered in Clearwater, FL, USA, the company offers 94 products in their lineup. They hold 5 verified certifications including Labdoor, Fda Gmp Inspections, Non Gmo Project, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Legion has 4 historical regulatory incidents on record, which are factored into the trust score.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 150,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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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.