Youtheory K2D3 Bone & Heart Health supplement bottle
Youtheory

K2D3 Bone & Heart Health Review

What We Researched
6 active ingredients analyzed · 14 inactive ingredients decoded · 4 brand certifications checked · Last updated: Aug 2026
96
Product Score Excellent
89
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 D 125.0 mcg 625%
Vitamin K 100.0 mcg 83%
Bioavailability Excellent

Absorption Rating

  • Vitamin D Good
  • Vitamin K Good
Other Ingredients Excellent

Fillers & Additives

  • Natural Flavors
  • Malic Acid
  • Vegetable Juice
  • Fruit flavors
  • Sunflower Lecithin
  • Carnauba Wax
  • Maltitol
  • Isomaltooligosaccharides
  • Pectin
  • Sodium Citrate
  • Citric Acid
  • Vegetable Oil
  • Purified Water
  • Rebaudioside A
Efficacy Very Good

Dosage Analysis

  • Vitamin D 125.0 mcg High
  • Vitamin K 100.0 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Calories 10.0 Cal †
Total Carbohydrate 2.0 g 1%
Sugars 1.0 g †
Added Sugars 1.0 g 1%
Vitamin D 125.0 mcg 625%
Vitamin K 100.0 mcg 83%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Natural Flavors Safe

Improves taste of chewable, gummy, or liquid supplements.

Malic Acid Safe

Adds tartness and enhances fruit flavors in gummies and chewables.

Vegetable Juice Unknown
Fruit flavors Unknown
Sunflower Lecithin Safe

Helps mix oil and water-based ingredients. Allergen-free alternative to soy lecithin.

Carnauba Wax Safe

Provides a glossy, protective coating on tablets.

Maltitol Generally_safe

It is used to add sweetness with fewer calories than sugar.

Isomaltooligosaccharides Unknown
Pectin Safe

Forms the base of gummy supplements as a vegan gelatin alternative.

Sodium Citrate Safe

Stabilizes pH and helps maintain ingredient effectiveness.

Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

Vegetable Oil Generally_safe

It can be used as a carrier or emollient.

Purified Water Safe

Dissolves and carries water-soluble ingredients.

Rebaudioside A Generally_safe

It is used to add sweetness to supplements without adding calories.

Brand Trust Report
Youtheory

Founded 2010 · Irvine, California, United States · 137 products · youtheory.com/

Certifications

4 certifications
Consumerlab Verified Source
Usp Verified Verified Source
Nsf Gmp Verified Source
Non-GMO Project Verified Verified

Transparency

3 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source

Violation History

2 incidents
Prop 65 Lead2017-02-24Source
Lawsuit Investigation into potentially fraudulent anti-aging claims for Youtheory Collagen Tablets.2014
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Frequently Asked Questions
Is Youtheory K2D3 Bone & Heart Health a good supplement?

Youtheory K2D3 Bone & Heart Health received a product quality score of 96/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 6 active ingredients with 60 servings per container. Of the 14 inactive ingredients, 8 are rated safe and 0 are flagged for review. The manufacturer, Youtheory, holds a brand trust score of 89/100 with 4 verified certifications including Consumerlab, Usp Verified, Nsf Gmp, Non-GMO Project Verified.

What are the ingredients in Youtheory K2D3 Bone & Heart Health?

Youtheory K2D3 Bone & Heart Health contains 6 active ingredients: Calories (10.0 Cal), Total Carbohydrate (2.0 g), Sugars (1.0 g), Added Sugars (1.0 g), Vitamin D (125.0 mcg), Vitamin K (100.0 mcg). Notable high-dose ingredients include Vitamin D at 625% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Youtheory K2D3 Bone & Heart Health safe to take?

Youtheory K2D3 Bone & Heart Health has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Youtheory a trustworthy supplement brand?

Youtheory receives a brand trust score of 89/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2010 and headquartered in Irvine, California, United States, the company offers 137 products in their lineup. They hold 4 verified certifications including Consumerlab, Usp Verified, Nsf Gmp, Non-GMO Project Verified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Youtheory has 2 historical regulatory incidents on record, which are factored into the trust score.

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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.