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

• Amazing Meal Chocolate InfusionAmazing Grass14 mg
• Amazing Meal Chocolate PeppermintAmazing Grass14 mg
• Amazing Meal Original BlendAmazing Grass38 mg
• Amazing Meal Pomegranate MangoAmazing Grass9 mg
• Amazing Meal Pumpkin SpiceAmazing Grass9 mg
• Amazing Meal Vanilla ChaiAmazing Grass15 mg
• Amazing Oranges PacketPurity Products500 mg
• Amazing Oranges PowderPurity Products500 mg
• Amazing TrioAmazing Grass4 mg
• AmbislimSynergistic Nutritional Compounds · off the market60 mg
• Ambrotose AOMannatech25 mg
• AmdGenestra Brands250 mg
• Amen Sea MossCodeage50 mg
• American Iso Whey Protein ChocolateMGN Muscle Gauge Nutrition0.9 mg
• American Iso Whey Protein VanillaMGN Muscle Gauge Nutrition0.9 mg
• Americana Whey UnflavoredPharminin a blend
• Amevit KidsAmvilab20 mg
• Amino 1 Cherry LimeadeMusclePharm250 mg
• Amino 1 Cherry LimeadeMP MusclePharm300 mg
• Amino 1 Fruit PunchMusclePharm250 mg
• Amino 1 Fruit PunchMP MusclePharm300 mg
• Amino 1 Lemon LimeMusclePharm250 mg
• Amino 1 Orange MangoMusclePharm250 mg
• Amino 1000Precision Engineered20 mg
• Amino 1000Myology · off the market20 mg
• Amino 1000Puritan's Pride20 mg
• Amino 3000MET-Rx30 mg
• Amino Acid Complete 1000Lifestyle Fitness & Nutritionin a blend
• Amino AthleteSource Naturals Athletic Series15 mg
• Amino Build Next Gen Ripped Peach MangoMuscleTech Performance Series2.5 mg
• Amino DaySource Naturals45 mg
• Amino Evolution Cherry Iceproject#1200 mg
• Amino K.E.M. Much PunchEvogen100 mg
• Amino K.E.M. Sour WatermelonEvogen100 mg
• Amino Restore Natural Choclate FlavorTaylor MD Formulations300 mg
• Amino Restore Natural Vanilla FlavorTaylor MD Formulations300 mg
• Amino Thrust Fruit PunchLabrada100 mg
• Amino Thrust Green AppleLabrada100 mg
• Amino Thrust Orange MangoLabrada100 mg
• Amino Thrust Pina ColadaLabrada100 mg
• AminoEV Rocket Popproject#1200 mg
• AminoLean Blackberry PomegranateRSP95 mg
• AminoLean Fruit PunchRSP96 mg
• AminoLean GrapeRSP95 mg
• AminoLean Pink LemonadeRSP96 mg
• AminoLean WatermelonRSP95 mg
• AminoMeal Select ChocolateMoss Nutrition100 mg
• AminoMeal Select Orange-PineappleMoss Nutrition100 mg
• AminoMeal Select VanillaMoss Nutrition100 mg
• AminopowerplusTruehope300 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