Nature's Blend Vitamin D3 10 mcg (400 IU) Drops supplement bottle
Nature's Blend

Vitamin D3 10 mcg (400 IU) Drops Review

What We Researched
3 active ingredients analyzed · 4 inactive ingredients decoded · 2 brand certifications checked · Page generated: Sep 2026
75
Product Score Fair
82
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 D3 (as Cholecalciferol) 10 mcg 50%
Bioavailability Excellent

Absorption Rating

  • Vitamin D3 (as Cholecalciferol) Good
Other Ingredients Excellent

Fillers & Additives

  • Soybean Oil
  • Natural Flavor
  • Corn Oil
  • Vitamin E
Efficacy Very Poor

Dosage Analysis

  • Vitamin D3 (as Cholecalciferol) 10 mcg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 10 kcal
Total Fat 1 g 2%
Vitamin D3 (as Cholecalciferol) 10 mcg 50%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Soybean Oil Safe

Dissolves fat-soluble ingredients. Contains soy allergen.

Natural Flavor Safe

Improves taste of chewable, gummy, or liquid supplements.

Corn Oil Generally_safe

It is used as a carrier oil or emollient.

Vitamin E Generally_safe

It is added to supplements as a source of vitamin E.

Brand Trust Report
Nature's Blend

Founded 1974 · Casa Grande, Arizona, USA · 187 products · naturesblendshop.com/

Certifications

2 certifications
Npa Gmp Source available Primary evidence
Fda Gmp Inspections Source available Primary evidence

Transparency

4 claims
Third Party Testing Claim — Claimed Evidence available Evidence
Coa Availability — Verified Evidence available Evidence
In House Testing — Verified Evidence available Evidence

Violation History

1 incident
Prop 65 Lead2019-02-08 Source available Primary source
Related Supplements
Frequently Asked Questions
Is Nature's Blend Vitamin D3 10 mcg (400 IU) Drops a good supplement?

Nature's Blend Vitamin D3 10 mcg (400 IU) Drops received a product quality score of 75/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 3 active ingredients with 52 servings per container. All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Nature's Blend, holds a brand trust score of 82/100.

What are the ingredients in Nature's Blend Vitamin D3 10 mcg (400 IU) Drops?

Nature's Blend Vitamin D3 10 mcg (400 IU) Drops contains 3 active ingredients: Calories (10 kcal), Total Fat (1 g), Vitamin D3 (as Cholecalciferol) (10 mcg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Nature's Blend Vitamin D3 10 mcg (400 IU) Drops safe to take?

GoodSupp reviewed the inactive-ingredient data available for Nature's Blend Vitamin D3 10 mcg (400 IU) Drops. All 4 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 Nature's Blend a trustworthy supplement brand?

Nature's Blend receives a brand trust score of 82/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1974 and headquartered in Casa Grande, Arizona, USA, the company offers 187 products in their lineup. Note: Nature's Blend has 1 historical regulatory incident 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.