non-nutrient/non-botanical

Inositol supplements

Half of the 4,042 inositol supplements in the NIH label database that print an amount list 30 mg or less per serving; the middle half list 10 mg to 80 mg (DSLD version 9.4.0, January 2026). The 104 products whose only supplement ingredient is inositol list a median of 700 mg.

How much inositol do supplements contain?

The median product lists 30 mg per serving. One in ten lists 1 mg or less, one in ten 235 mg or more. The amount printed most often is 50 mg (622 products).

Which products list the most inositol?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

• Ovarian HealthAOR Advanced Orthomolecular Research Advanced2,256 mg
• Myo-InositolFresh Nutrition2,200 mg
• FH PRO for WomenFairhaven Health2,050 mg
• Myo + D-Chiro InositolFairhaven Health2,050 mg
• OvasitolTheralogix2,050 mg
• Myo+D-Chiro+VitexZazzee Naturals2,050 mg
• Pregnositol UnflavoredZazzee Naturals2,050 mg
• PCOSenseNatural Factors WS WomenSense2,050 mg

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 22.5 mg; those entered in 2025, 50 mg.

In which products and brands?

Brands listing it most: Douglas Laboratories (194), Nature's Plus (170), Nature's Way (129), Country Life (63), NOW (60), Rainbow Light (50), Vitamin World (46), Integrative Therapeutics (44), Puritan's Pride (42), GNC Women's Ultra Mega (42).

Every product listing inositol

4,595 products, A to Z by name (page 74 of 92), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Sports Performance Pro-PCA FuelDouglas Laboratories · off the market12 mg
• Sports Performance Pro-PCA Fuel Natural Raspberry FlavorDouglas Laboratories12 mg
• Sports Performance Pro-PCA Fuel Training Session FormulaDouglas Laboratories12 mg
• St. John's ForteBiotics Research Corporation200 mg
• St. John's Wort-IMTSP Standard Processin a blend
• StableThe Enclare Nutrition1,025 mg
• Standardized Cholester-X PlusOL Olympian Labs29 mg
• Star Wars Complete Multivitamins GummiesNatureSmart · off the market0.04 mg
• StarMulti Space BerryKidStar5 mg
• Steady OnAllergy Research Group22 mg
• STR8 2 SleepSuccess Chemistryin a blend
• StrawberryON Optimum Nutrition500 mg
• StrawberryAdvoCare10 mg
• Strawberry ShakeUniversal Nutritionin a blend
• Strawberry ShakeUniversal · off the marketin a blend
• Stress "M"Country Life300 mg
• Stress & Anxiety FormulaNatrol100 mg
• Stress Anxiety Formula SAFNatrol · off the market100 mg
• Stress AwayPure Vegan · off the market100 mg
• Stress Away High Potency B-ComplexUnder The Shield · off the market100 mg
• Stress BDaVinci Laboratories Of Vermont55 mg
• Stress B CapsulesDaVinci Laboratories55 mg
• Stress B Complex with C-500Puritan's Pride10 mg
• Stress B FormulaNatural Factors25 mg
• Stress B Formula Plus 1000 mg CNatural Factors25 mg
• Stress B GoneBuried Treasure Liquid Nutrients50 mg
• Stress B Plus C-500Good 'N Natural · off the market10 mg
• Stress B With C-500 Time ReleasePuritan's Pride · off the market50 mg
• Stress B&CPriority One Nutritional Supplements100 mg
• Stress B-ComplexBluebonnet100 mg
• Stress B-Complex CapsTwinlab100 mg
• Stress DefensePrescribed Choice · off the market450 mg
• Stress EaseAN American Nutriceuticals50 mg
• Stress EndEnzymatic Therapy · off the market50 mg
• Stress EndNature's Way50 mg
• Stress EssentialIntegrative Therapeutics50 mg
• Stress FactorsBioGenesis Nutraceuticals · off the market50 mg
• Stress FactorsNutra BioGenesis50 mg
• Stress LessRise-N-Shine · off the market33 mg
• Stress Plus With Valerian RootNOW150 mg
• Stress ReliefETST Earth Science Tech50 mg
• Stress Relief PlusEB Earth's Bounty · off the market50 mg
• Stress Relief PlusEarth's Bounty50 mg
• Stress SupportZoi Researchin a blend
• Stress Support PackDouglas Laboratories25 mg
• Stress Vitamin B Complex With Vitamin CNature's Harmony15 mg
• Stress-B 100Highland Laboratories100 mg
• Stress-B-PlusDouglas Laboratories55 mg
• Stress-B-Plus (Vitamin B Complex)Douglas Laboratories · off the market55 mg
• Stress-Calm 160 PlusGreat Earth · off the market160 mg

Where next?

• Inositol powder
• Check an amount of inositol
• Labels above the upper limit
• All ingredients