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 70 of 399), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Centrum Silver Plus VisionCentrum90 mg
- Centrum Silver Women 50+Centrum100 mg
- Centrum Silver Women 50+GSK100 mg
- Centrum Specialist EnergyCentrum120 mg
- Centrum Specialist Energy MultivitaminCentrum120 mg
- Centrum Specialist HeartCentrum30 mg
- Centrum Specialist Heart MultivitaminCentrum30 mg
- Centrum Specialist PrenatalCentrum90 mg
- Centrum Specialist VisionCentrum90 mg
- Centrum Stress & MoodCentrum90 mg
- Centrum VitaMintsCentrum60 mg
- Centrum VitaMints RaspberryCentrum60 mg
- Centrum VitaMints WintergreenCentrum60 mg
- Centrum WomenCentrum75 mg
- Centrum Women 50+ MultigummiesCentrum36 mg
- Centrum Women MultigummiesCentrum18 mg
- Centrum Women Under 50Centrum75 mg
- Centrum Women's MultiCentrum90 mg
- Centurion Defender Immunity BoostCenturion500 mg
- Centurion Defender PMCenturion Labs · off the market250 mg
- Centurion Defender PMCenturion250 mg
- CenturySafeway Care60 mg
- Century AdultSmart Sense60 mg
- Century AdultsSignature Care60 mg
- Century CompleteTop Care60 mg
- Century Complete Multivitamin/Multimineral SupplementEqualine60 mg
- Century FormulaSwanson Premium Brand · off the market90 mg
- Century Formula Without IronSwanson Premium Brand · off the market90 mg
- Century MatureSmart Sense60 mg
- Century MatureGoodSense60 mg
- Century MatureSignature Care60 mg
- Century MatureMeijer60 mg
- Century menSignature Care90 mg
- Century Men'sEqualine90 mg
- Century Senior 50+ FormulaSafeway Care60 mg
- Century Senior Ultimate Men'sTop Care120 mg
- Century Ultimate Men'sTop Care90 mg
- Century Ultimate Men's Senior FormulaSafeway Care120 mg
- Century Ultimate Women'sTop Care75 mg
- Century WomenGoodSense75 mg
- Century Women's Complete 50+TopCare Health100 mg
- Ceracarenutra4health · off the market50 mg
- Ceramides for Skin Hydration 5 mgDr. Mercola5 mg
- CerenityOrtho Molecular Products50 mg
- Cerenity PMOrtho Molecular Products50 mg
- CereViveOrtho Molecular Products50 mg
- CereVive Jr. BerrySpringboard25 mg
- CeroviteRugby60 mg
- Cerovite Jr.Rugby60 mg
- Cerovite LiquidRugby60 mg