PlainVitamins

C-Grams

by AdvoCare · other (e.g. tea bag) · 120 caplets

  • On the market (NIH)
  • DSLD label 265354
  • Serving 1 to 2 caplets; amounts per 2 caplets
  • 60 servings

C-Grams by AdvoCare lists 4 ingredients, 4 with an amount per serving of 2 caplets, such as 1,000 mg of vitamin C, 300 mg of L-lysine, 100 mg of mixed citrus flavonoid complex and 25 mg of calcium alpha-ketoglutarate. Its current label entered the NIH Dietary Supplement Label Database on May 19, 2022.

What is in C-Grams?

Each row as the label prints it, per serving of 2 caplets. 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).

C-Grams: Supplement Facts rows against the market (DSLD label 265354, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate1,000 mg1,111%Vitamin C in C-Grams against 18,583 products1,000 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg1,000 mg

Higher than 91% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 2,000 mg.

L-Lysineas L-Lysine Hydrochloride300 mgLysine in C-Grams against 1,250 products300 mg per serving; the middle half of products list 148.25 mg to 996.25 mg, the median 500 mg.300 mg

60% of 1,250 products listing lysine give more (median 500 mg). Per day at the most servings: 600 mg.

Mixed citrus flavonoid complex100 mgFlavonoid in C-Grams 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: 200 mg.

Calcium Alpha-Ketoglutarate25 mg2%*Calcium in C-Grams against 17,831 products25 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg25 mg

88% of 17,831 products listing calcium give more (median 115 mg). Per day at the most servings: 50 mg.

* % Daily Value computed from the printed amount and the FDA Daily Value (21 CFR 101.9); the label prints none for that row.

Source: NIH ODS Dietary Supplement Label Database, label 265354 (entered May 19, 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?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • Its 1,000 mg of vitamin C is higher than 91% of the 18,583 vitamin C products that print an amount; 445 list more.

The NIH database records 2 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?

The products whose ingredient lists overlap most with C-Grams's, rare ingredients counting for more.

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
Directions For Use: Take up to two caplets twice daily, preferably with a meal.
Warnings
Caution: Check with your healthcare professional before using this product.
Keep out of reach of children
Storage
Store product away from excessive heat, light and humidity.

Source: label statements in DSLD label 265354.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Calcium Phosphate, Croscarmellose Sodium, Stearic Acid, Magnesium Stearate, Silicon Dioxide, Ethylcellulose.

How many labels does C-Grams have?

2 labels are on file under this name since June 25, 2018: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 265354 (current) Entered May 19, 2022 · on the market · 120 caplets
  2. Label 177551 Entered June 25, 2018 · off the market October 11, 2021 · 120 caplets · UPC W3151/01L0511

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

Who makes it?

The label names AdvoCare International L.P. (distributor), Richardson, TX. All AdvoCare products.

Where next?