KAL Niacin, 250 mg, 100 Tablets supplement bottle
KAL

Niacin, 250 mg, 100 Tablets

What We Researched
1 active ingredient analyzed · 3 inactive ingredients decoded · 3 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
93
Product Score Excellent
73
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Niacin 250 mg 1,563%
Bioavailability Excellent

Absorption Rating

  • Niacin Good
Other Ingredients Excellent

Fillers & Additives

  • Cellulose
  • Croscarmellose Sodium
  • Stearic Acid and Magnesium Stearate
Efficacy Very Good

Dosage Analysis

  • Niacin 250 mg High

Supplement Facts

Ingredient Amount % Daily Value
Niacin 250 mg 1,563%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Stearic Acid and Magnesium Stearate Generally_safe

They are used to improve the flow and processing of the supplement.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$12$11$10$9$8 Mar 12 $9.99$9.99
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
KAL

Founded 1932 · Salt Lake City, Utah, United States · 289 products · kalvitamins.com

Certifications

3 certifications
Nsf Gmp Verified Source
Fda Gmp Inspections Verified Source
Usda Organic Verified Source

Transparency

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

Violation History

1 incident
Lawsuit A consumer class action was filed alleging that the marketing of a dietary supplement violated California's consumer-protection laws.2013Source
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Frequently Asked Questions
Is KAL Niacin, 250 mg a good supplement?

KAL Niacin, 250 mg, 100 Tablets received a product quality score of 93/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients Of the 3 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, KAL, holds a brand trust score of 73/100 with 3 verified certifications including Nsf Gmp, Fda Gmp Inspections, Usda Organic.

What are the ingredients in KAL Niacin, 250 mg?

KAL Niacin, 250 mg contains 1 active ingredients: Niacin (250 mg). Notable high-dose ingredients include Niacin at 1,563% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is KAL Niacin, 250 mg safe to take?

KAL Niacin, 250 mg, 100 Tablets 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 KAL a trustworthy supplement brand?

KAL receives a brand trust score of 73/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1932 and headquartered in Salt Lake City, Utah, United States, the company offers 289 products in their lineup. They hold 3 verified certifications including Nsf Gmp, Fda Gmp Inspections, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: KAL 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 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.

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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. 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.