DOSERANKEVIDENCE-BASED SUPPLEMENTS© 2026 DoseRank · Evidence-based supplements
Methodology·Outcomes·Categories·Blog
Support·Feedback
DOSERANKEVIDENCE-BASED SUPPLEMENTSFull analysis

The short answer · Insulin resistance

Take berberine, chromium picolinate & cinnamon for insulin resistance. This is the one to buy.

Force Factor, Ultra Berberine™, Glucose & Metabolism Formula, 60 Vegetable Capsules
1

Force Factor, Ultra Berberine™, Glucose & Metabolism Formula, 60 Vegetable Capsules

4.8· 598 ratings· $0.54/serving

DoseRank score89

Berberine 500 mg — inside the studied 500-1500 mg window

Of 2,886 products scored for Insulin resistance, Force Factor, Ultra Berberine™, Glucose & Metabolism Formula, 60 Vegetable Capsules ranks #1 with a DoseRank score of 89. Berberine and Chromium Picolinate lead the evidence here, backed by Cinnamon.

View on iHerb— $0.54/sv60-sec quiz instead
Cheaper alternative$0.04 per servingSwanson Vitamins, Chromium Picolinate, 200 mcg, 200 Vegan Capsules

Retailer links may be affiliate links. Rankings and placement are never paid.

The form“Why Berberine, Chromium Picolinate & Cinnamon?”Evidence Strong evidence

Berberine and Chromium Picolinate lead the evidence here, backed by Cinnamon.

  • BerberineThe pick

    Strong evidence · 500 mg

    Plant alkaloid from Oregon grape and goldenseal; well-studied for blood sugar and lipid lowering and microbiome effects via AMPK activation.

  • Chromium PicolinateThe pick

    Strong evidence · 200 mcg

    Most-studied chromium form; picolinic acid improves absorption and cellular uptake. Used to support insulin sensitivity and carbohydrate metabolism.

  • CinnamonThe pick

    Moderate evidence · 500 mg

    Spice from Cinnamomum bark used to support post-meal blood glucose; common cassia is the cheaper type studied but high in coumarin, while Ceylon ("true cinnamon") is lower.

Buy the #1 pick
The dose“Is the dose actually effective?”Dose fit 66

2 of 3 dosed ingredients land in the studied range. Berberine at 500 mg lands inside the studied 500-1500 mg window.

Berberine

Studied window 500-1500 mg · this pick 500 mg

Chromium Picolinate

Studied window 200-1000 mcg · this pick 200 mcg

Cinnamon

Studied window 1000-3000 mg · this pick 500 mg

The ranking“Why should I trust this pick?”Trust 71

Solid trust signals from buyer ratings, with room to grow. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.

  • 2,886 products scored
  • Never paid placement
  • Evidence level: Strong · 89
  • 317 brands
  • 13 ingredients
See the full analysis — every score, every productHow the ranking works
The price“Can I do better than $0.54 a serving?”Value 55

$0.54 per serving — mid price tier for this outcome. The cheapest ranked pick here is $0.17 per serving.

  • 3
    Best Naturals, Berberine, 500 mg, 120 CapsulesScore 86 · $0.17/serving
    iHerb
  • 7
    EVLution Nutrition, Berberine, 60 Veggie Capsules, (500 mg mg per Capsule)Score 85 · $0.19/serving
    iHerb

Why not the absolute cheapest? The DoseRank score also weighs clinical strength, evidence, dose fit and trust — the very cheapest listings rarely hold up everywhere else.

Ready?

The #1 pick is $0.54 a serving.

Force Factor, Ultra Berberine™, Glucose & Metabolism Formula, 60 Vegetable Capsules — in stock at a tracked retailer.

View on iHerb
Want it personal instead?

A saved, shareable breakdown: your matched products, dose math, and interaction flags to discuss with a clinician.

Or take the 60-sec quiz →

Questions

Frequently asked

Force Factor, Ultra Berberine™, Glucose & Metabolism Formula, 60 Vegetable Capsules ranks #1 for Insulin resistance with a DoseRank score of 89. The score blends clinical strength, evidence, dose fit, trust signals and value across 2,886 products scored for this outcome.

Berberine and Chromium Picolinate lead the evidence here, backed by Cinnamon.

2 of 3 dosed ingredients land in the studied range. Berberine at 500 mg lands inside the studied 500-1500 mg window. DoseRank scores this product's dose fit at 66 out of 100.

Force Factor, Ultra Berberine™, Glucose & Metabolism Formula, 60 Vegetable Capsules works out at $0.54 per serving. $0.54 per serving — mid price tier for this outcome. The cheapest ranked pick here is $0.17 per serving.

No. Retailer links may be affiliate links, but rankings and placement are never paid. Every product is scored by the same public model, and the ranking is recomputed from the underlying product data rather than edited by hand.

Keep exploring

Other outcomes

  • Fasting blood glucoseBlood glucose after fasting.
  • Fasting insulinBaseline insulin concentration.
  • Glucose toleranceAbility to handle a glucose load appropriately.
  • HbA1cAverage blood glucose marker over prior months.
  • Insulin sensitivityEfficiency of tissue response to insulin.
  • Postprandial glucoseBlood glucose after meals.

Use rankings as research support

DoseRank rankings are informational and not medical advice. If you are pregnant, breastfeeding, using medications, or managing a health condition, ask a qualified clinician whether a supplement fits your situation. Stop use and report concerning adverse events to a clinician, the product maker, or the retailer.

Disclosure

Retailer links may be affiliate links. Rankings and placement are not paid placement.

Force Factor, Ultra Berberine™, Glucose & Metabolism Formula, 60 Vegetable Capsules

$0.54/serving · ★ 4.8 · In stock

60-sec quizView on iHerb