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Nutrition Reviews

Head to head · Vitamins & Minerals

Thorne Iron Bisglycinate vs Wholesome Story Myo-Inositol & D-Chiro Inositol Capsules

Thorne scores higher overall (8.6 vs 7.3 out of 10) and leads on all five factors we score.

Updated November 2026 from our full reviews · How we score

Higher score
Front of Thorne Iron Bisglycinate 60-capsule bottle
ThorneIron Bisglycinate
8.6
Excellent

25 mg of chelated iron (Ferrochel bisglycinate) in a small, NSF Certified for Sport capsule; gentler than iron salts for most, but only for people who need iron.

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Front of the Wholesome Story Myo & D-Chiro Inositol 120-capsule bottle
Wholesome StoryMyo-Inositol & D-Chiro Inositol Capsules
7.3
Mixed

A clean, NSF Contents Certified 40:1 inositol capsule, though matching the 4,000 mg dose used in PCOS trials takes 8 capsules and about $1.86 a day.

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The short answer

Choose Thorne if…

  • People with low ferritin who get stomach upset from ferrous sulfate
  • Menstruating women and athletes who need iron under medical guidance
  • Vegetarians with confirmed low iron
  • You care most about efficacy, quality & purity, value, experience, transparency

Choose Wholesome Story if…

  • Women with PCOS who want a third-party certified 40:1 inositol in capsules, with their clinician's input
  • People who prefer small capsules to an unflavored powder
  • Shoppers who value NSF and Clean Label Project verification

Key differences

Biggest scoring gap
Efficacy: Thorne 8.5, Wholesome Story 6.6. This factor covers key ingredients at clinically studied doses, and how strong the evidence is.
Independent testing
Thorne carries NSF Certified for Sport; Wholesome Story carries NSF Contents Certified.
Formula
Of the key ingredients in our reviews, only Thorne lists iron.
Format
Thorne: capsule, 60 servings per container; Wholesome Story: capsule, 30 servings per container.
Dietary labels
Only Thorne is labeled dairy-free and soy-free. Only Wholesome Story is labeled vegan and non-GMO.

Side by side

Iron BisglycinateMyo-Inositol & D-Chiro Inositol Capsules
Our score8.6 / 107.3 / 10
Efficacy (30%)8.56.6
Quality & Purity (25%)9.38.6
Value (20%)7.66.0
Experience (15%)8.68.0
Transparency (10%)9.07.8
FormCapsuleCapsule
Serving1 capsule60 servings per container4 Capsules30 servings per container
Price per servingSee retailer$0.93
Testing & certifications
NSF Certified for Sport
NSF Contents CertifiedClean Label ProjectcGMP facility
DietaryGluten-free, Dairy-free, Soy-freeVegan, Gluten-free, Non-GMO
Key ingredients
  • Iron (as Ferrochel ferrous bisglycinate chelate)25 mg
  • Myo-inositol2,000 mg
  • D-chiro-inositol50 mg
Flavors——
Creator video reviews55

Pros and cons

Iron Bisglycinate

  • Iron amino-acid chelate, a form NIH says may cause fewer GI side effects
  • NSF Certified for Sport
  • 25 mg dose sits below the 45 mg upper limit
  • About $0.27 per day, more than generic ferrous sulfate
  • Some users still report nausea on an empty stomach
All 8 pros and cons

Myo-Inositol & D-Chiro Inositol Capsules

  • Fully disclosed 2,000 mg myo-inositol and 50 mg D-chiro-inositol per serving, with no proprietary blend
  • NSF Contents Certified and listed on Clean Label Project's Purity Award certificate
  • Vegan capsules with only rice flour as a filler
  • One serving is half the 4,000 mg daily dose used in many PCOS trials
  • The studied dose takes 8 capsules and about $1.86 a day, so a bottle lasts 15 days
All 8 pros and cons

Our verdict: Thorne vs Wholesome Story

Thorne is the stronger product overall, 8.6 to 7.3 in our scoring, ahead on all five factors we score. If you are tested for banned substances, choose Thorne: it is the one with NSF Certified for Sport. Each full review shows the evidence, testing and buyer feedback behind these scores.

Full Iron Bisglycinate review Full Myo-Inositol & D-Chiro Inositol Capsules review

What creators say

Questions people ask

Is Thorne better than Wholesome Story?
In our scoring, Thorne Iron Bisglycinate rates higher overall (8.6 vs 7.3 out of 10). Thorne leads on efficacy, quality & purity, value, experience and transparency. Scores weigh efficacy, quality, value, experience and transparency.
Are Thorne and Wholesome Story third-party tested?
Thorne carries NSF Certified for Sport; Wholesome Story carries NSF Contents Certified. Sport-level certifications screen for banned substances, which matters for drug-tested athletes.
Who should choose Thorne over Wholesome Story?
Our reviews suggest Thorne is best for people with low ferritin who get stomach upset from ferrous sulfate, menstruating women and athletes who need iron under medical guidance and vegetarians with confirmed low iron, while Wholesome Story is best for women with PCOS who want a third-party certified 40:1 inositol in capsules, with their clinician's input, people who prefer small capsules to an unflavored powder and shoppers who value NSF and Clean Label Project verification.
What is the difference between Thorne and Wholesome Story?
Thorne carries NSF Certified for Sport; Wholesome Story carries NSF Contents Certified. Of the key ingredients in our reviews, only Thorne lists iron. Thorne: capsule, 60 servings per container; Wholesome Story: capsule, 30 servings per container.

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