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 97 of 399), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Cran-DefenseZHOU30 mg
- Cran-PlusBotanic Choice1 mg
- CranActinSolaray · off the market30 mg
- CranActin 200 mg ChewablesSolaray60 mg
- CranActin 400 mgSolaray30 mg
- CranActin D-Mannose 1000 mgSolaray30 mg
- CranberryCarlson40 mg
- CranberryCVS Pharmacy40 mg
- CranberryShopRite40 mg
- CranberryNature's Way · off the market30 mg
- CranberrySwanson Premium Brand · off the market100 mg
- CranberrySpring Valley30 mg
- CranberryNova Nutritions40 mg
- CranberryCVS Health40 mg
- CranberryAZO60 mg
- CranberrySwanson100 mg
- Cranberry & D-MannoseGNC Herbal Plus60 mg
- Cranberry & Vitamin CGNC Herbal Plus60 mg
- Cranberry & Vitamin C SoftgelsBulkSupplements.com40 mg
- Cranberry + D-MannoseThymely Solutions30 mg
- Cranberry + D-MannoseVillage Vitality30 mg
- Cranberry + ProbioticMeijer30 mg
- Cranberry + Triple StrengthPhysioLogics · off the market40 mg
- Cranberry 1000 mg with Vitamin CNewtonEverett20 mg
- Cranberry 15,000 mg plus Vitamin CWindmill Natural Vitamins100 mg
- Cranberry 25,000 mgNutricost45 mg
- Cranberry 400 mgCHK Nutrition50 mg
- Cranberry 400 mgNature's Way · off the market30 mg
- Cranberry 4200 mg With Vitamin C & EExchange Select · off the market40 mg
- Cranberry 4200 mg with Vitamins C & EExchange Select40 mg
- Cranberry 450 mg Extract with Vitamin CNature Made250 mg
- Cranberry 500 mgMeijer120 mg
- Cranberry 500 mglonglifenutri30 mg
- Cranberry 500 mg With Vitamin CExchange Select120 mg
- Cranberry 8,400 mg with Vitamin C & EAN Amazing Nutrition Amazing Formulas40 mg
- Cranberry 84 mgSpring Valley40 mg
- Cranberry 90% Fruit SolidsNature's Way30 mg
- Cranberry Action + Vitamin CThe Vitamin Shoppe100 mg
- Cranberry BenefitsProCaps Laboratories45 mg
- Cranberry BenefitsProCaps40 mg
- Cranberry CapletsAZO60 mg
- Cranberry CapsNOW20 mg
- Cranberry CapsButterfly Express20 mg
- Cranberry ComplexProfessional Botanicals300 mg
- Cranberry ComplexDr. Rico Perez100 mg
- Cranberry ConcentratePhysician's Preference · off the market20 mg
- Cranberry ConcentrateNOW · off the market20 mg
- Cranberry ConcentrateNew Sun10 mg
- Cranberry ConcentrateBRI Nutrition · off the market20 mg
- Cranberry ConcentrateMason Natural100 mg