DuraCarb

by Source Naturals · powder · 32 ozs

  • On the market (NIH)
  • UPC 0 21078 00748 7
  • DSLD label 213660
  • Serving 28 to 56 g (1 1/2-3 scoops); amounts per 28 g
  • 32 servings

DuraCarb by Source Naturals lists 2 ingredients, 2 with an amount per serving of 28 g, such as 20 mcg of chromium and 28 g of maltodextrin, beside 6 Nutrition Facts rows (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on February 26, 2020.

What is in DuraCarb?

Each row as the label prints it, per serving of 28 g. 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).

DuraCarb: Supplement Facts rows against the market (DSLD label 213660, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories105 Calories
Total Fatno amount given1%
Saturated Fatno amount given1%
Trans Fatno amount given
Total Carbohydrates26 g10%Carbohydrate in DuraCarb against 21,979 products26 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.26 g

Higher than 96% of 21,979 products listing carbohydrate (median 3 g).

Sugar1 gSugar in DuraCarb against 11,807 products1 g per serving; the middle half of products list 1 g to 4 g, the median 2 g.1 g

69% of 11,807 products listing sugar give more (median 2 g).

Proteinno amount given1%
Chromiumas yeast-free GTF Chromium PolynicotinateChromium (Form: from yeast-free GTF Chromium Polynicotinate (Alt. Name: ChromeMate))20 mcg17%Chromium in DuraCarb against 7,825 products20 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg20 mcg

88% of 7,825 products listing chromium give more (median 100 mcg).

Maltodextrin28 gMaltodextrin in DuraCarb against 39 products28 g per serving; the middle half of products list 0.91 g to 26 g, the median 3 g.28 g

Higher than 74% of 39 products listing maltodextrin (median 3 g).

Source: NIH ODS Dietary Supplement Label Database, label 213660 (entered February 26, 2020), version 9.4.0. See the label on DSLD. 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; 4 ingredients sit inside a blend, so their amounts cannot be compared.

The NIH database records one serving 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 DuraCarb'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
Duracarb is smooth and mixes easily, with no oily or bitter aftertaste. You can drink Duracarb before and throughout workouts, to replenish fluids and energy. For optimal energy and fitness, take Duracarb along with Muscle Dynamo, Source Naturals advanced athletic formula. Muscle Dynamo contains key nutrients involved in the Krebs energy-producing cycle.
Suggested Use: Mix 1 1/2 scoops in 8-12 ounces of your favorite beverage (using water or diluted juice such as apple juice will avoid the sugar "high" effect and help provide a smooth release of fuel). Duracarb requires no blender; it dissolves easily when stirred. Drink before and during workouts for increased energy and fluid replenishment. Drink after cool-down from intense workouts to restore depleted carbohydrate and glycogen reserves. For endurance athletes: Take 3 scoops of Duracarb 20 minutes before training. Sip throughout workout for continuous replenishment of energy and fluids. Take 1 1/2 scoops after cool-down to maximize recuperation.
Warnings
Caution: If you are pregnant, may become pregnant, breastfeeding, or diabetic, consult your health care professional before using this product.
Do not use if either tamper-evident seal is broken or missing.
Keep out of reach of children.
Allergens and what it does not contain
Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no starch, preservatives, or artificial color, flavor or fragrance.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 213660.

How many labels does DuraCarb have?

2 labels are on file under this name since February 26, 2020: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 213660 (current) Entered February 26, 2020 · on the market · 32 ozs · UPC 0 21078 00748 7
  2. Label 213657 Entered February 26, 2020 · on the market · 16 ozs · UPC 0 21078 00747 0

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?