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.

Products listing it: 4,5954,042 print an amount; 551 list it inside a blend without an amount
Median per serving: 30 mgmiddle half 10 mg to 80 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).

Products by amount of inositol per serving

4,042 products, log scale; extreme 0.2% at each end left out of the drawing.

The amounts printed most often
Amount per serving	Products	For example
50 mg	622	Be Calm Regular Strength (Viva Vitamins); Mega B-50 (Vitamin World); Vitamins For The Hair (Radiance)
25 mg	425	LifeEssence (Pure Essence Labs); Green Source (Radiance); Ultra Vita-Min Iron Free (Puritan's Pride)
10 mg	414	Sport (GNC Mega Men); Maximum Nutrition Vanilla Bean (GNC Mega Men); Maximum Nutrition Vanilla Creme (GNC Women's Ultra Mega)
100 mg	374	Mega B-100 Timed Release (Vitamin World); Be Calm Extra Strength (Viva Vitamins); Vitamin B-100 (Radiance)
30 mg	195	Hair, Skin & Nails (Rexall); Ultra Vita Man 50+ (Vitamin World); High Potency Multi Pack (VitaCeutical Labs)
20 mg	148	One 'N' Only Men's Formula (Pure Essence Labs); Active Woman's Multi (Vitabase); B-Complex + Minerals (Douglas Laboratories)
0.04 mg	118	VitaCraves Gummies (Bayer One A Day); Centrum Flavor Burst Wild Grape Adult Chews (Centrum); Gummy Vites Complete (L'il Critters)
75 mg	102	Super 75 Vitamins & Minerals (Carlson); Multi Vitamin With Minerals (Radiance Select); Activite Sport (MHP Maximum Human Performance)
0.01 mg	91	Marvel The Amazing Spider-Man Gummies (Sundown); Disney-Pixar Finding Nemo Gummies MultiVitamin (NatureSmart); Disney Pirates Of The Caribbean Sour Gummies Multivitamin (NatureSmart)
500 mg	81	Vitamins For The Hair (Vitamin World); Ultra Man Hair Formula (Vitamin World); Inositol Powder (Vitabase)

Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).

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.

Median inositol per serving by the year the label entered DSLD (years with 20+ products)
Year	Products	Median per serving
2011	118	22.5 mg
2012	342	30 mg
2013	400	50 mg
2014	184	25.5 mg
2015	171	45 mg
2016	203	25 mg
2017	249	30 mg
2018	150	25 mg
2019	202	28 mg
2020	374	25 mg
2021	291	30 mg
2022	366	37.25 mg
2023	352	30 mg
2024	349	30 mg
2025	291	50 mg

Source: DSLD label entry dates and amounts, current labels.

In which products and brands?

Products listing inositol by DSLD product type

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 37 of 92), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

InositolJarrow Formulas · off the market600 mg
InositolBulkSupplements.com500 mg
InositolPure Nootropics500 mg
InositolEarthborn Elements930 mg
InositolSP Standard Process375 mg
Inositol & CholineSource Naturals400 mg
Inositol (Myo-Inositol) 2000 mgWholesome Story2,000 mg
Inositol (Powder)Pure Encapsulations4,000 mg as transcribed, likely a slip
Inositol (Vitamin B8)PureBulk.com600 mg
Inositol + GlycineAdvanced Nutrition by Zahler2,500 mg as transcribed, likely a slip
Inositol + Vitex PlusDaVinci Laboratories2,000 mg
Inositol 1 g UnflavoredNutricost1,000 mg
Inositol 1000 mgVitamin World1,000 mg
Inositol 1000 mgBest Naturals1,000 mg
Inositol 1000 mgPuritan's Pride1,000 mg
Inositol 1000 mgAdvanced Nutrition by Zahler1,000 mg
Inositol 1000 mgAN Amazing Nutrition Amazing Formulas1,000 mg
Inositol 1000 mgDouble Wood Supplements1,000 mg
Inositol 1g UnflavoredCynthia Thurlow Powered by MDLogic1,000 mg
Inositol 500 mgPhysician's Preference · off the market500 mg
Inositol 500 mgThompson500 mg
Inositol 500 mgSolgar500 mg
Inositol 500 mgDr. Clark Research Association Dr. Clark Zentrum500 mg
Inositol 500 mgGNC · off the market500 mg
Inositol 500 mgNatural Grocers by Vitamin Cottage500 mg
Inositol 500 mgNutricost500 mg
Inositol 500 mgAN Amazing Nutrition Amazing Formulas500 mg
Inositol 500 mgNature's Way500 mg
Inositol 500 mg Cherry BlastEZ Melts500 mg
Inositol 600 mgNature's Plus · off the market600 mg
Inositol 600 mgBulkSupplements.com600 mg
Inositol 650 mgVitamin World650 mg
Inositol 650 mgSwanson Premium Brand · off the market650 mg
Inositol 650 mgThe Vitamin Shoppe650 mg
Inositol 650 mgDC650 mg
Inositol 650 mgWonder Laboratories650 mg
Inositol 650 mgSwanson650 mg
Inositol 750 mgJarrow Formulas750 mg
Inositol 900 mgPhysician's Preference · off the market900 mg
Inositol CapsTwinlab500 mg
Inositol Caps 1000 mgLife Extension1,000 mg
Inositol Capsules 500 mgLuckyVitamin500 mg
Inositol Capsules 500 mgNOW500 mg
Inositol ComplexPure Encapsulations700 mg
Inositol MultivitaminPeach Perfect2,050 mg
Inositol Myo + D-ChiroBeLive2,050 mg
Inositol PowderVitamin World1,000 mg
Inositol PowderVitabase500 mg
Inositol PowderDesigns for Health700 mg
Inositol PowderVerified Quality Natural Products · off the market4,000 mg as transcribed, likely a slip