PlainVitamins

Challenge

by Loomis Enzymes · powder · 8 ounces

  • On the market (NIH)
  • UPC 6 97706 04140 8
  • DSLD label 327424
  • Serving 9 g (~1 rounded tablespoon)
  • 25 servings

Challenge by Loomis Enzymes lists 6 ingredients, 6 with an amount per serving of 9 g, such as 2,830 mg of fig, 1,830 mg of psyllium, 1,800 mg of fennel and 1,360 mg of flaxseed, beside 6 Nutrition Facts rows (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on February 23, 2025.

What is in Challenge?

Each row as the label prints it, per serving of 9 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).

Challenge: Supplement Facts rows against the market (DSLD label 327424, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories35 Calories
Total Fatless than 1 g1%
Total Carbohydrates6 g2%Carbohydrate in Challenge against 21,979 products6 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.6 g

Higher than 73% of 21,979 products listing carbohydrate (median 3 g). Per day at the most servings: 12 g.

Dietary Fiber4 g15%Fiber in Challenge against 6,987 products4 g per serving; the middle half of products list 1 g to 4 g, the median 2 g.4 g

Higher than 74% of 6,987 products listing fiber (median 2 g). Per day at the most servings: 8 g.

Sugar1 gSugar in Challenge 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). Per day at the most servings: 2 g.

Proteinless than 1 g1%
Sodium10 mg1%Sodium in Challenge against 14,514 products10 mg per serving; the middle half of products list 15 mg to 142 mg, the median 55 mg.10 mg

78% of 14,514 products listing sodium give more (median 55 mg). Per day at the most servings: 20 mg.

Figas Ficus carica2,830 mg
Psylliumas Plantago ovata1,830 mgPsyllium (unspecified) in Challenge against 156 products1,830 mg per serving; the middle half of products list 200 mg to 1,700 mg, the median 750 mg.1,830 mg

Higher than 76% of 156 products listing psyllium (unspecified) (median 750 mg). Per day at the most servings: 3,660 mg.

Fennelas Foeniculum vulgare1,800 mgFennel in Challenge against 315 products1,800 mg per serving; the middle half of products list 26.5 mg to 215 mg, the median 72 mg.1,800 mg

Higher than 97% of 315 products listing fennel (median 72 mg). Per day at the most servings: 3,600 mg.

Flaxseed1,360 mgFlax in Challenge against 359 products1,360 mg per serving; the middle half of products list 50 mg to 1,000 mg, the median 200 mg.1,360 mg

Higher than 80% of 359 products listing flax (median 200 mg). Per day at the most servings: 2,720 mg.

Pumpkinas Cucurbita pepo980 mgPumpkin in Challenge against 294 products980 mg per serving; the middle half of products list 30 mg to 200 mg, the median 80 mg.980 mg

Higher than 93% of 294 products listing pumpkin (median 80 mg). Per day at the most servings: 1,960 mg.

Guar Gum200 mgGuar in Challenge against 128 products200 mg per serving; the middle half of products list 300 mg to 1,625 mg, the median 651.5 mg.200 mg

80% of 128 products listing guar give more (median 651.5 mg). Per day at the most servings: 400 mg.

Source: NIH ODS Dietary Supplement Label Database, label 327424 (entered February 23, 2025), 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 1,800 mg of fennel is higher than 97% of the 315 fennel products that print an amount; 6 list more.
  • Its 980 mg of pumpkin is higher than 93% of the 294 pumpkin products that print an amount; 20 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 Challenge'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 9 g (- 1 rounded tablespoon) between meals, 2 times daily or as directed. Blend thoroughly in a full 8 oz. glass of water or juice to avoid swallowing difficulty. Do not consume dry.
Warnings
Keep out of reach of children
Psyllium warning: May cause allergic reaction in people sensitive to inhaled or ingested psyllium.
Note: Consult your physician before using this product if you are pregnant, nursing, taking medication, or have a medical condition.
Do not use if inner or outer seal is broken, torn, or missing.
Do not consume dry.
Storage
To ensure freshness and potency, keep bottle tightly closed and store in a cool, dry place. Product filled by weight not volume

Source: label statements in DSLD label 327424.

How many labels does Challenge have?

3 labels are on file under this name since May 24, 2018: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 327424 (current) Entered February 23, 2025 · on the market · 8 ounces · UPC 6 97706 04140 8
  2. Label 246551 Entered April 22, 2021 · off the market January 29, 2024 · 8 ozs · UPC 6 97706 04140 8
  3. Label 177157 Entered May 24, 2018 · off the market February 23, 2021 · 8 oz. · UPC 6 97706 04140 8

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

Who makes it?

The label names Loomis Enzymes, LLC (distributor), Fitchburg, Wisconsin. All Loomis Enzymes products.

Where next?