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 72 of 399), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Chewable Adult Multi Pineapple-Orange FlavorCountry Life200 mg
- Chewable Advanced 2 OrangeVisionary · off the market250 mg
- Chewable Advanced Multi EA Mixed FruitBariatric Advantage Innovations45 mg
- Chewable Advanced Multi EA StarwberryBariatric Advantage Innovations90 mg
- Chewable Advanced Multi EA StrawberryBariatric Advantage Innovations45 mg
- Chewable Advanced Multi EA without Iron Mixed FruitBariatric Advantage Innovations90 mg
- Chewable All-CNeoLife Nutritionals206 mg
- Chewable Black Elderberry Immune Complex Natural Mixed Berry FlavorNature's Truth · off the market250 mg
- Chewable C 1,000 mg plus Wild Rose Hips Natural Orange FlavorNature's Truth · off the market1,000 mg
- Chewable C 100 mg Fruit FlavorGNC · off the market100 mg
- Chewable C 100 mg Mixed FruitGNC100 mg
- Chewable C 500 mg21st Century · off the market500 mg
- Chewable C 500 mgAvPAK500 mg
- Chewable C 500 mg Fruit FlavorGNC · off the market500 mg
- Chewable C 500 mg Mixed BerrySunmark500 mg
- Chewable C 500 mg Mixed FruitGNC500 mg
- Chewable C 500 mg OrangeSunmark500 mg
- Chewable C 500 mg Orange Flavored21st Century500 mg
- Chewable C 500 mg Raspberry-CherryVitaCeutical Labs500 mg
- Chewable C 500 mg Sugar Free CherryGNC · off the market500 mg
- Chewable C 500 mg Sugar Free Cherry FlavorGNC · off the market500 mg
- Chewable C 500 mg Tangy Orange TasteKirkland Signature500 mg
- Chewable C 500 mg With Orange Juice PowderSafeway500 mg
- Chewable C 500 mg With Rose Hips Natural Orange FlavorSundown Naturalist500 mg
- Chewable C 500 mg with Rose Hips Natural Orange FlavorRexall Sundown Naturalist500 mg
- Chewable C Fruit Flavor 120 mgSource Naturals120 mg
- Chewable C Fruit Flavor 500 mgSource Naturals500 mg
- Chewable C- 500Nutri-West500 mg
- Chewable C-25021st Century250 mg
- Chewable C-250 (Ascorbic Acid & Sodium Ascorbate) Orange FlavoredWindmill Natural Vitamins250 mg
- Chewable C-250 (Ascorbic Acid & Sodium Ascorbate) Tangerine FlavoredWindmill Natural Vitamins · off the market250 mg
- Chewable C-300 Cherry FlavorDaVinci Laboratories of Vermont · off the market300 mg
- Chewable C-300 Cherry FlavorDaVinci Laboratories300 mg
- Chewable C-300 Orange-Pineapple FlavorDaVinci Laboratories of Vermont · off the market300 mg
- Chewable C-300 Orange-Pineapple FlavorDaVinci Laboratories300 mg
- Chewable C-500Windmill500 mg
- Chewable C-50021st Century · off the market500 mg
- Chewable C-500AvPak · off the market500 mg
- Chewable C-500 Delicious Berry FlavorWindmill Natural Vitamins · off the market500 mg
- Chewable C-500 mg Natural Vitamin C Delicious Berry FlavorNature's Bounty500 mg
- Chewable C-500 Natural Cherry FlavorNOW · off the market500 mg
- Chewable C-500 Natural Cherry-Berry FlavorNOW · off the market500 mg
- Chewable C-500 Natural Orange Juice FlavorNOW · off the market500 mg
- Chewable C-500 Orange FlavoredWindmill Natural Vitamins500 mg
- Chewable C-500 Tangerine FlavoredWindmill500 mg
- Chewable C-500 with Rose Hips & BioflavonoidsWindmill Natural Vitamins500 mg
- Chewable Children's Multivitamins with Vitamin CEqualine250 mg
- Chewable Elderberry Immune Complex Mixed BerryNature's Blend500 mg
- Chewable Essential Multi without Iron BerryBariatric Advantage120 mg
- Chewable Essential Multi without Iron OrangeBariatric Advantage60 mg