KAL C 1000 Buffered, 100 Tablets supplement bottle
KAL

C 1000 Buffered, 100 Tablets

What We Researched
2 active ingredients analyzed · 3 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
62
Product Score Fair
73
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (from Ascorbic Acid) 1,000 mg 1,111%
Calcium (from Calcium Carbonate) 150 mg 12%
Bioavailability Fair

Absorption Rating

  • Vitamin C (from Ascorbic Acid) Fair
  • Calcium (from Calcium Carbonate) Fair
Other Ingredients Fair

Fillers & Additives

No inactive ingredient data available.

Efficacy Fair

Dosage Analysis

  • Vitamin C (from Ascorbic Acid) 1,000 mg Effective
  • Calcium (from Calcium Carbonate) 150 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (from Ascorbic Acid) 1,000 mg 1,111%
Calcium (from Calcium Carbonate) 150 mg 12%

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$9$8$7$6$5 Mar 12 $7.00
iHerb

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 C 1000 Buffered, 100 Tablets a good supplement?

KAL C 1000 Buffered, 100 Tablets received a product quality score of 62/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 2 active ingredients 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 C 1000 Buffered, 100 Tablets?

KAL C 1000 Buffered, 100 Tablets contains 2 active ingredients: Vitamin C (from Ascorbic Acid) (1,000 mg), Calcium (from Calcium Carbonate) (150 mg). Notable high-dose ingredients include Vitamin C at 1,111% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is KAL C 1000 Buffered, 100 Tablets safe to take?

KAL C 1000 Buffered, 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.

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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.