vitamin
Vitamin C supplements
Half of the 18,583 vitamin C supplements in the NIH label database that print an amount list 100 mg or less per serving; the middle half list 60 mg to 270 mg, and 1 in 82 of the 18,422 with a plausible amount give more than the adult upper limit at the most servings their labels direct (DSLD version 9.4.0, January 2026). The 775 products whose only supplement ingredient is vitamin C list a median of 500 mg, and 1 in 15 of them give more than the upper limit.
- Products listing it
- 19,91918,583 print an amount; 1,244 list it inside a blend without an amount
- Median per serving
- 100 mgmiddle half 60 mg to 270 mg
- FDA Daily Value
- 90 mgthe median is 111% of it
- Adult upper limit (IOM)
- 2,000 mg224 products go above it a day
How much vitamin C do supplements contain?
The median product lists 100 mg per serving. One in ten lists 21 mg or less, one in ten 750 mg or more. The amount printed most often is 60 mg (2,234 products).
Products by amount of vitamin C per serving
18,583 products, log scale; extreme 0.2% at each end left out of the drawing.
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).
How do the amounts compare with the Daily Value and the upper limit?
The FDA Daily Value for vitamin C is 90 mg (adults and children 4 and older). The median product gives 111% of it per serving; the 90th percentile 833%.
The adult Tolerable Upper Intake Level is 2,000 mg a day (total intake from food, water and supplements). At the most servings their labels direct, 224 of the 18,422 products with a plausible amount (1.2%) give more than that from the supplement alone (what counts as plausible).
The upper limit is for total intake from food, water and supplements unless stated, and does not apply under medical supervision. A label amount is what the maker printed. This is data, not advice: the NIH ODS fact sheets explain what each nutrient does.
Sources: 21 CFR 101.9(c)(8)(iv) (Daily Values); Institute of Medicine, DRI summary tables (2011) (upper limits); on reading them, the FDA's Daily Value page.
Which products list the most vitamin C?
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).
- Ultra Preventive Forte-Chel (Capsules)Douglas Laboratories3,000 mg
- Ultra Preventive Forte-ChelDouglas Laboratories3,000 mg
- C-500Optimox3,000 mg
- C Buffered CrystalsThompson3,000 mg
- Vitamin C 1,000 mgIndiana Botanic Gardens3,000 mg
- Anti-Alcohol Antioxidants With HepatoProtection ComplexLife Extension3,000 mg
- Mega-Liposomal Vitamin C 3000 mgAurora Nutrascience3,000 mg
- Ortho C+ Lemon FlavorAOR Advanced Orthomolecular Research Premium3,000 mg
Have the amounts changed over the years?
Products whose current label entered DSLD in 2011 list a median of 120 mg; those entered in 2025, 100 mg.
| Year | Products | Median per serving |
|---|---|---|
| 2011 | 371 | 120 mg |
| 2012 | 1,185 | 200 mg |
| 2013 | 1,373 | 100 mg |
| 2014 | 836 | 100 mg |
| 2015 | 808 | 111.55 mg |
| 2016 | 824 | 120 mg |
| 2017 | 916 | 100 mg |
| 2018 | 772 | 100 mg |
| 2019 | 969 | 100 mg |
| 2020 | 1,680 | 100 mg |
| 2021 | 1,731 | 100 mg |
| 2022 | 1,904 | 100 mg |
| 2023 | 1,716 | 100 mg |
| 2024 | 1,946 | 120 mg |
| 2025 | 1,552 | 100 mg |
Source: DSLD label entry dates and amounts, current labels.
In which products and brands?
Products listing vitamin C by DSLD product type
Brands listing it most: Nature's Way (366), Douglas Laboratories (330), Nature's Plus (284), ProCaps Laboratories (169), Bronson (151), NOW (144), Country Life (129), Puritan's Pride (110), Source Naturals (108), Nature Made (106).
Every product listing vitamin C
19,919 products, A to Z by name (page 175 of 399), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- intraMAX 2.0 Peach Mango FlavorDrucker Labs720 mg
- IntraMax All-In-One All Natural Peach Mango FlavorDrucker Labs · off the market600 mg
- IntraPro Delicious Vanilla FlavorGaspari Nutritionno amount
- IntraPro Double Chocolate FlavorGaspari Nutritionno amount
- IntraPro Strawberries & Cream FlavorGaspari Nutritionno amount
- InvincibleFight Labs100 mg
- Iodine Co-FactorsTerry Naturally1,200 mg
- Ionic Iron + Vitamin CAM Angstrom Minerals3 mg
- Ionic Tonic Lemon LimeTrace Minerals Research · off the market60 mg
- Ionic Zinc & Elderberry + Vitamin CGood State30 mg
- Ionic Zinc with Elderberry + Vitamin CGood State180 mg
- IonShieldClinical Synergy Professional Formulas62.5 mg
- IPP Non-GMO Soy Lecithin GranulesVSN Vital Strength Nutrition · off the marketin a blend
- IPP Non-GMO Soy Lecithin GranulesVitaCeutical Labsin a blend
- IPP Non-GMO Soy Lecithin GranulesVitamer Laboratoriesin a blend
- Irish Moss PowderBIOVEA Natural Foodsin a blend
- Irom Free All-In-One MultivitaminThompson60 mg
- IronChapter Six5 mg
- Iron & Folic Acid & Vitamin C TabletsKR · off the market80 mg
- Iron +ProCaps Laboratories120 mg
- Iron + CFuturebiotics120 mg
- Iron + C 4.5 mg/90 mg AppleKAL90 mg
- Iron + Vitamin C Grape FlavorLifeable Kids26 mg
- Iron + Vitamin C Gummies Grape FlavorLifeable26 mg
- Iron + Vitamin C Natural Orange FlavorBariMelts90 mg
- Iron + Vitamin C Orange FlavorBariActiv90 mg
- Iron +Vitamin C Delicious Black Raspberry FlavorNuLife Advanced Bariatrics75 mg
- Iron 15 mg with Vitamin CPuritan's Pride175 mg
- Iron 18 + Vitamin C OrangeCelebrate36 mg
- Iron 18 mg Zesty OrangeEZ Melts30 mg
- Iron 25 mg with Vitamin CNATURELO Premium Supplements · off the market50 mg
- Iron 30 + Vitamin CCelebrate60 mg
- Iron 30 + Vitamin C GrapeCelebrate60 mg
- Iron 45 + Vitamin CCelebrate60 mg
- Iron 45 + Vitamin C Cherry BurstCelebrate60 mg
- Iron 45 + Vitamin C GrapeCelebrate60 mg
- Iron 60 + Vitamin CCelebrate60 mg
- Iron 60 + Vitamin C BerryCelebrate60 mg
- Iron 60 + Vitamin C Twisted CitrusCelebrate60 mg
- Iron 65 mgNutricost Women45 mg
- Iron Adult Chewables Orange FlavoredNovaFerrum60 mg
- Iron AidCountry Life · off the market150 mg
- Iron AllPuritan's Pride67 mg
- Iron BeardZHOU100 mg
- Iron Bis-GlycinateDaVinci Laboratories Of Vermont · off the market100 mg
- Iron Bis-GlycinateDaVinci Laboratories100 mg
- Iron Blood Maker 9 in 1 Iron Advanced ComplexKAPPA NUTRITION150 mg
- Iron BoosterNatures Nectar100 mg
- Iron BuilderSNAP360 mg
- Iron Chewable 10 mgSeeking Health0.025 mg as transcribed, likely a slip