PlainVitamins

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.

Inositol: products by amount per serving0.03 mg1 mg10 mg100 mg
Inositol: products by amount per serving0.03 mg0.3 mg3 mg30 mg300 mg
Inositol: products by amount per serving0.03 mg0.3 mg3 mg10 mg100 mg1,000 mg
Inositol: products by amount per serving0.03 mg0.3 mg1 mg3 mg10 mg30 mg100 mg1,000 mg
Inositol: products by amount per serving0.01 mg0.03 mg0.1 mg0.3 mg1 mg3 mg10 mg30 mg100 mg300 mg1,000 mg
The amounts printed most often
Amount per servingProductsFor example
50 mg622 Be Calm Regular Strength (Viva Vitamins); Mega B-50 (Vitamin World); Vitamins For The Hair (Radiance)
25 mg425 LifeEssence (Pure Essence Labs); Green Source (Radiance); Ultra Vita-Min Iron Free (Puritan's Pride)
10 mg414 Sport (GNC Mega Men); Maximum Nutrition Vanilla Bean (GNC Mega Men); Maximum Nutrition Vanilla Creme (GNC Women's Ultra Mega)
100 mg374 Mega B-100 Timed Release (Vitamin World); Be Calm Extra Strength (Viva Vitamins); Vitamin B-100 (Radiance)
30 mg195 Hair, Skin & Nails (Rexall); Ultra Vita Man 50+ (Vitamin World); High Potency Multi Pack (VitaCeutical Labs)
20 mg148 One 'N' Only Men's Formula (Pure Essence Labs); Active Woman's Multi (Vitabase); B-Complex + Minerals (Douglas Laboratories)
0.04 mg118 VitaCraves Gummies (Bayer One A Day); Centrum Flavor Burst Wild Grape Adult Chews (Centrum); Gummy Vites Complete (L'il Critters)
75 mg102 Super 75 Vitamins & Minerals (Carlson); Multi Vitamin With Minerals (Radiance Select); Activite Sport (MHP Maximum Human Performance)
0.01 mg91 Marvel The Amazing Spider-Man Gummies (Sundown); Disney-Pixar Finding Nemo Gummies MultiVitamin (NatureSmart); Disney Pirates Of The Caribbean Sour Gummies Multivitamin (NatureSmart)
500 mg81 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).

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)
YearProductsMedian per serving
201111822.5 mg
201234230 mg
201340050 mg
201418425.5 mg
201517145 mg
201620325 mg
201724930 mg
201815025 mg
201920228 mg
202037425 mg
202129130 mg
202236637.25 mg
202335230 mg
202434930 mg
202529150 mg

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

In which products and brands?

Products listing inositol by DSLD product type

Inositol by product typeOther Combinations3,834Non-Nutrient/Non-Botanical128Botanical with Nutrients35Multi-Vitamin and Mineral (MVM)23Vitamin17Fat/Fatty Acid4Botanical1
Inositol by product typeOther Combinations3,834Non-Nutrient/Non-Botanical128Botanical with Nutrients35Multi-Vitamin and Mineral (MVM)23Vitamin17Fat/Fatty Acid4Botanical1
Inositol by product typeOther Combinations3,834Non-Nutrient/Non-Botanical128Botanical with Nutrients35Multi-Vitamin and Mineral (MVM)23Vitamin17Fat/Fatty Acid4Botanical1
Inositol by product typeOther Combinations3,834Non-Nutrient/Non-Botanical128Botanical with Nutrients35Multi-Vitamin and Mineral (MVM)23Vitamin17Fat/Fatty Acid4Botanical1
Inositol by product typeOther Combinations3,834Non-Nutrient/Non-Botanical128Botanical with Nutrients35Multi-Vitamin and Mineral (MVM)23Vitamin17Fat/Fatty Acid4Botanical1

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

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