Thorne Iron Bisglycinate
vs
Douglas Laboratories Timed Release Iron
Supplement Comparison

  • Iron: Douglas Laboratories Timed Release Iron has 2.2× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 2 nutrients compared
Bar chart: per-serving label amounts and listed forms for Thorne Iron Bisglycinate vs Douglas Laboratories Timed Release Iron.

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Frequently asked questions

Which active ingredients does Thorne Iron Bisglycinate have?

  • Iron appears as Ferrochel Ferrous Bisglycinate Chelate (Albion)

Which active ingredients does Douglas Laboratories Timed Release Iron have?

  • Iron appears as Ferronyl Iron

Which categories do Thorne Iron Bisglycinate and Douglas Laboratories Timed Release Iron belong to?

  • Single Mineral

What health concerns do Thorne Iron Bisglycinate and Douglas Laboratories Timed Release Iron address?

  • Athletic Performance
  • Energy & Metabolism
  • Women's Health
  • General Health

Which product has a higher amount of Iron per serving?

  • Douglas Laboratories Timed Release Iron has the highest total amount of Iron: 54 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Thorne Iron Bisglycinate: 1 capsule
    • Douglas Laboratories Timed Release Iron: 2 tablets
  • Iron
    • This supplement has 25 mg
    • Recommended Dietary Allowance in men: 8 mg
    • Recommended Dietary Allowance in women: 18 mg
    • Tolerable Upper Intake Level: 45 mg
  • Iron
    • This supplement has 54 mg
    • Recommended Dietary Allowance in men: 8 mg
    • Recommended Dietary Allowance in women: 18 mg
    • Tolerable Upper Intake Level: 45 mg

Last updated: February 9, 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).
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  • 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.
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  • Author: VIOscan Research Team