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.

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).

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.

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.

In which products and brands?

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 33 of 399), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• AREDS2 E-Free Blue FormulaVisiVite500 mg
• AREDS2 Eye Vitamins Plus Omega-3EVOA500 mg
• AREDS2 Plus+ Gold FormulaVisiVite500 mg
• AREDS2 Red FormulaVisiVite500 mg
• AREDS2 Select FormulaVisiVite500 mg
• AREDS2 White FormulaVisiVite500 mg
• ArginexSP Standard Processin a blend
• ArginMaxGNC Women's60 mg
• ArginMaxGNC60 mg
• ArginMaxGNC Men's60 mg
• ArginMax for MenThe Daily Wellness Company60 mg
• ArginMax for WomenThe Daily Wellness Company60 mg
• ArginMax Timed-ReleaseGNC Men's · off the market60 mg
• Arginol Citrus FlavorDr. LaMar's Products500 mg
• ArgizymeBiotics Research Corporation15 mg
• ARM Plus+ Fruit SmoothieMax Muscle Nutrition250 mg
• ARM Plus+ Intense StrawberryMax Muscle Nutrition250 mg
• ARM Plus+ Orange Citrus BlastMax Muscle Nutrition250 mg
• ARM Plus+ Peach Mango RushMax Muscle Nutrition250 mg
• ARM Plus+ Tropical Fruit PunchMax Muscle Nutrition250 mg
• ARM Plus+ Watermelon SplashMax Muscle Nutrition250 mg
• ArmorEu Natural500 mg
• Armor-VMusclePharm · off the market235 mg
• Armor-V Multi-Nutrient ComplexMP MusclePharm235 mg
• Arnge Krush Blue HawaiiBioRhythm · off the market500 mg
• Arnge Krush California RedBioRhythm · off the market500 mg
• Arnge Krush Florida OrangeBioRhythm · off the market500 mg
• Arnold Iron Cre3 Blue RazzMusclePharm500 mg
• Arnold Iron Cre3 Fruit PunchMusclePharm500 mg
• Arnold Iron Cre3 WatermelonMusclePharm500 mg
• Arnold Iron PackMusclePharm282 mg
• Arnold Iron PackArnold Schwarzenegger Series282 mg
• Arnold Iron Pump Fruit PunchMusclePharm250 mg
• Arnold Iron Pump Raspberry LemonadeMusclePharm250 mg
• Arnold Iron Pump WatermelonMusclePharm250 mg
• Arnold Iron Whey ChocolateMusclePharmno amount
• Arnold Iron Whey VanillaMusclePharmno amount
• Arnold Schwarzenegger Iron Pump Blue RazzMusclePharm250 mg
• Arnold Schwarzenegger Iron Pump Fruit PunchMusclePharm250 mg
• Arnold Schwarzenegger Iron Pump Pineapple MangoMusclePharm250 mg
• Arnold Schwarzenegger Iron Pump Raspberry LemonadeMusclePharm250 mg
• Arnold Schwarzenegger Iron Pump WatermelonMusclePharmin a blend
• Arsenal Training PacksMET-Rx340 mg
• Arth-9Rx Vitamins125 mg
• Arth-Support FormulaDouglas Laboratories Ultra Preventive 2000 Series · off the market1,000 mg
• Arth-Support FormulaDouglas Laboratories · off the market1,000 mg
• Artho Joint ComplexProfessional Botanicals140 mg
• Artho-PakDC100 mg
• ARTHOJointWonder Laboratories50 mg
• ArthoplexDC50 mg

Where next?

• Liquid vitamin C
• Vitamin C capsules
• Vitamin C drops
• Vitamin C gummies
• Vitamin C powder
• Check an amount of vitamin C
• Labels above the upper limit
• All ingredients