Thorne Calcium
vs
Jarrow Biotin
Supplement Comparison

  • Calcium: Thorne Calcium has 72% more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 4 nutrients compared
Bar chart: per-serving label amounts and listed forms for Thorne Calcium vs Jarrow Biotin.

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Frequently asked questions

Which active ingredients does Thorne Calcium have?

  • Calcium appears as DiCalcium Malate

Which active ingredients does Jarrow Biotin have?

  • Vitamin B7 (Biotin) appears as D-Biotin
  • Calcium appears as DiCalcium Phosphate

Which categories do Thorne Calcium and Jarrow Biotin belong to?

  • Single Mineral
  • Single Vitamin

What health concerns do Thorne Calcium and Jarrow Biotin address?

  • Joint & Bone Health
  • Women's Health
  • Energy & Metabolism
  • General Health
  • Skin, Hair & Nail Health

Which product has a higher amount of Calcium per serving?

  • Thorne Calcium has the highest total amount of Calcium: 250 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Thorne Calcium: 1 capsule
    • Jarrow Biotin: 1 capsule
  • Calcium
    • This supplement has 250 mg
    • Recommended Dietary Allowance in men: 1000 mg
    • Recommended Dietary Allowance in women: 1000 mg
    • Tolerable Upper Intake Level: 2500 mg
  • Vitamin B7 (Biotin)
    • This supplement has 5000 mcg
    • Adequate Intake in men: 30 mcg
    • Adequate Intake in women: 30 mcg
    • Tolerable Upper Intake Level: Not established
  • Calcium
    • This supplement has 145 mg
    • Recommended Dietary Allowance in men: 1000 mg
    • Recommended Dietary Allowance in women: 1000 mg
    • Tolerable Upper Intake Level: 2500 mg

Last updated: February 11, 2026

  • Sources & Methodology: Nutrient data and forms are taken directly from Supplement Facts labels. Reviewed and standardized by the VIOscan Research Team. Learn more on the Methodology page.
  • We show the Recommended Dietary Allowance (RDA) when available. If no RDA exists, we show the Adequate Intake (AI). Tolerable Upper Intake Levels (UL) are used for upper limits. Unless otherwise noted, RDAs shown correspond to healthy adults aged 19–50 years and are sex-specific. Separate values exist for 51–70 years and >70 years, and pregnancy and lactation are excluded. All values come from the Dietary Reference Intakes (DRIs) published by the National Academies of Sciences, Engineering, and Medicine (NASEM), Food and Nutrition Board (FNB).
  • Transparency: We’re funded by our users. We don’t have sponsors or affiliate links, and we don’t sell supplements.
  • Editorial standards: we provide independent, impartial and objective data analysis.
  • This analysis is for educational purposes only. It is not a substitute for medical advice.
  • Questions? Read our Frequently Asked Questions or contact us, we’re here to help.
  • See an error? Report it through our Contact page.
  • Author: VIOscan Research Team