Thorne Diabenil
vs
Douglas Laboratories Metabolic Lean
Supplement Comparison

  • Chromium: Thorne Diabenil has 2.0× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 13 nutrients compared
Bar chart: per-serving label amounts and listed forms for Thorne Diabenil vs Douglas Laboratories Metabolic Lean.

Try the VIOscan dashboard demo for free

Build comparison charts in seconds – no signup or card needed

This is a free preview of the $9.99/month premium dashboard

Use the interactive demo with multivitamins samples

Try Free Demo

Frequently asked questions

Which active ingredients does Thorne Diabenil have?

  • Chromium appears as Chromium Picolinate
  • Vanadium appears as Vanadyl Sulfate
  • Alpha Lipoic Acid
  • Quercetin appears as Quercetin Phytosome
  • Gymnema
  • Bilberry
  • Bitter Melon

Which active ingredients does Douglas Laboratories Metabolic Lean have?

  • Chromium appears as Chromium Picolinate
  • Blend appears as Meratrim Proprietary Blend (Sphaeranthus indicus flower heads extract, Garcinia mangostana fruit rind extract)
  • Capsaicinoids appears as Capsimax Capsaicinoids (capsaicin, dihydrocapsaicin, nordihydrocapsaicin)

Which categories do Thorne Diabenil and Douglas Laboratories Metabolic Lean belong to?

  • Herbal Extract
  • Metabolic Support Formula

What health concerns do Thorne Diabenil and Douglas Laboratories Metabolic Lean address?

  • Blood Sugar Support
  • Energy & Metabolism
  • Eye Health
  • Weight Management
  • Metabolic Support

Which product has a higher amount of Chromium per serving?

  • Thorne Diabenil has the highest total amount of Chromium: 200 mcg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Thorne Diabenil: 2 capsules
    • Douglas Laboratories Metabolic Lean: 1 capsule
  • Chromium
    • This supplement has 200 mcg
    • Adequate Intake in men: 35 mcg
    • Adequate Intake in women: 25 mcg
    • Tolerable Upper Intake Level: Not established
  • Chromium
    • This supplement has 100 mcg
    • Adequate Intake in men: 35 mcg
    • Adequate Intake in women: 25 mcg
    • Tolerable Upper Intake Level: Not established

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