PlainVitamins

Metabolic C 500 mg

by Source Naturals · capsule · 180 capsules

  • On the market (NIH)
  • UPC 0 21078 02203 9
  • DSLD label 275421
  • Serving 1 capsule
  • 180 servings

Metabolic C 500 mg by Source Naturals lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 500 mg of vitamin C and 100 mg of citrus bioflavonoid complex. Its current label entered the NIH Dietary Supplement Label Database on October 24, 2022.

What is in Metabolic C 500 mg?

Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Metabolic C 500 mg: Supplement Facts rows against the market (DSLD label 275421, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas PureWay-CA proprietary blend of ascorbic acid, vegetable lipid metabolites, bioflavonoids500 mg555%Vitamin C in Metabolic C 500 mg against 18,583 products500 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg500 mg

Higher than 81% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 2,000 mg.

Citrus Bioflavonoid Complex100 mgFlavonoid in Metabolic C 500 mg against 2,343 products100 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.100 mg

Higher than 62% of 2,343 products listing flavonoid (median 50 mg). Per day at the most servings: 400 mg.

Source: NIH ODS Dietary Supplement Label Database, label 275421 (entered October 24, 2022), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records 1 to 4 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

6 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Suggested Use: 1 capsule up to four times daily.
Warnings
Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.
Do not use if either tamper-evident seal is broken or missing.
Keep out of the reach of children.
Allergens and what it does not contain
Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, preservatives, or artificial color, flavor or fragrance.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 275421.

What else is on the label?

Other ingredients: Gelatin, Microcrystalline Cellulose, Silica, Magnesium Stearate.

How many labels does Metabolic C 500 mg have?

4 labels are on file under this name since December 23, 2011: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 275421 (current) Entered October 24, 2022 · on the market · 180 capsules · UPC 0 21078 02203 9
  2. Label 75582 Entered June 23, 2017 · on the market · 90 tablets · UPC 0 21078 02170 4
  3. Label 3023 Entered December 23, 2011 · on the market · 180 tablets · UPC 0 21078 02171 1
  4. Label 3021 Entered December 23, 2011 · off the market May 24, 2017 · 90 tablets · UPC 0 21078 02170 4

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Source Naturals, Inc. (distributor), Santa Cruz, CA. All Source Naturals products.

Where next?