Chapter One Vitamin D3 Gummies, 60 Gummies (25 mcg (1000 IU) Per Gummy) supplement bottle
Chapter One

Vitamin D3 Gummies, 60 Gummies (25 mcg (1000 IU) Per Gummy)

What We Researched
2 active ingredients analyzed · 11 inactive ingredients decoded · 1 brand certification checked · 5 retailers compared · Last updated: Mar 2026
87
Product Score Good
63
Brand Score Fair

Product Analysis

Transparency Fair

Supplement Facts

IngredientAmount% DV
Vitamin D3 (Cholecalciferol)(1000 IU) 25 mcg 125%
Bioavailability Excellent

Absorption Rating

  • Vitamin D3 (Cholecalciferol)(1000 IU) Good
Other Ingredients Excellent

Fillers & Additives

  • Glucose Syrup
  • Sugar
  • Water
  • Pectin
  • Citric Acid
  • Sodium Citrate
  • Natural Flavors
  • Annatto
  • Elderberry juice (for colors)
  • Coconut Oil
  • Carnauba Wax
Efficacy Excellent

Dosage Analysis

  • Vitamin D3 (Cholecalciferol)(1000 IU) 25 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Includes 3 g Added Sugars 2%
Vitamin D3 (Cholecalciferol)(1000 IU) 25 mcg 125%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Glucose Syrup Generally_safe

It is used as a sweetener and binder.

Sugar Generally_safe

Adds sweetness to chewable or gummy supplements.

Water Safe

Dissolves and carries water-soluble ingredients.

Pectin Safe

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

Citric Acid Safe

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

Sodium Citrate Safe

Stabilizes pH and helps maintain ingredient effectiveness.

Natural Flavors Safe

Improves taste of chewable, gummy, or liquid supplements.

Annatto Safe

Provides natural color to supplements.

Elderberry juice (for colors) Unknown
Coconut Oil Safe

Helps dissolve and absorb fat-soluble vitamins.

Carnauba Wax Safe

Provides a glossy, protective coating on tablets.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$21$20$18$16$14 Mar 12 $19.47$16.29
iHerb
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Chapter One

Founded 2019 · Brooklyn, NY, USA · 17 products · zahler.com/collections/g-is-for-gummies

Certifications

1 certification
Vegan Certified Verified Source

Transparency

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

Violation History

3 incidents
Prop 65 Lead and lead compounds2023-08-28Source
Prop 65 Lead2021-12-09Source
Fda Warning A third-party retailer was cited for making disease-prevention claims about a Zahler product, which is a violation of the Federal Food, Drug, and Cosmetic Act.2017-04-17Source
Related Supplements
Frequently Asked Questions
Is Chapter One Vitamin D3 Gummies, 60 Gummies (25 mcg (1000 IU) Per Gummy) a good supplement?

Chapter One Vitamin D3 Gummies, 60 Gummies (25 mcg (1000 IU) Per Gummy) received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 2 active ingredients with 60 servings per container. Of the 11 inactive ingredients, 8 are rated safe and 0 are flagged for review. The manufacturer, Chapter One, holds a brand trust score of 63/100 with 1 verified certifications including Vegan Certified.

What are the ingredients in Chapter One Vitamin D3 Gummies, 60 Gummies (25 mcg (1000 IU) Per Gummy)?

Chapter One Vitamin D3 Gummies, 60 Gummies (25 mcg (1000 IU) Per Gummy) contains 2 active ingredients: Includes 3 g Added Sugars, Vitamin D3 (Cholecalciferol)(1000 IU) (25 mcg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Chapter One Vitamin D3 Gummies, 60 Gummies (25 mcg (1000 IU) Per Gummy) safe to take?

Chapter One Vitamin D3 Gummies, 60 Gummies (25 mcg (1000 IU) Per Gummy) 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 Chapter One a trustworthy supplement brand?

Chapter One receives a brand trust score of 63/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2019 and headquartered in Brooklyn, NY, USA, the company offers 17 products in their lineup. They hold 1 verified certifications including Vegan Certified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Chapter One has 3 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 250,000 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.

Scan Any Supplement Instantly

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

Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. 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.