PlainVitamins

GI Select

by Moss Nutrition · powder · 237 grams

  • On the market (NIH)
  • UPC M129
  • DSLD label 334929
  • Serving 3.95 g (approx. 1 scoop)
  • 60 servings

GI Select by Moss Nutrition lists 9 ingredients, 9 with an amount per serving of 3.95 g, such as 1,500 mg of L-glutamine, 1,000 mg of N-acetyl D-glucosamine, 200 mg of methylsulfonylmethane and 200 mg of aloe vera. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2025.

What is in GI Select?

Each row as the label prints it, per serving of 3.95 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).

GI Select: Supplement Facts rows against the market (DSLD label 334929, January 2026 release)
IngredientAmount% DVAmong products listing it
L-Glutamine1,500 mgGlutamine in GI Select against 1,850 products1.5 g per serving; the middle half of products list 0.356 g to 3 g, the median 1 g.1.5 g

Higher than 53% of 1,850 products listing glutamine (median 1 g).

N-Acetyl D-Glucosamine1,000 mgN-Acetyl Glucosamine in GI Select against 148 products1,000 mg per serving; the middle half of products list 79 mg to 500 mg, the median 250 mg.1,000 mg

Higher than 89% of 148 products listing N-acetyl glucosamine (median 250 mg).

Methylsulfonylmethane200 mgMethylsulfonylmethane in GI Select against 1,454 products200 mg per serving; the middle half of products list 150 mg to 1,000 mg, the median 500 mg.200 mg

68% of 1,454 products listing methylsulfonylmethane give more (median 500 mg).

Aloe Vera200:1200 mgAloe in GI Select against 523 products200 mg per serving; the middle half of products list 25 mg to 200 mg, the median 51 mg.200 mg

Higher than 72% of 523 products listing aloe (median 51 mg).

Quercetinas Quercetin Dihydrate125 mgQuercetin in GI Select against 1,548 products125 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.125 mg

Higher than 61% of 1,548 products listing quercetin (median 100 mg).

C3 Reductas Curcuma longa Extract95% tetrahydrocurcuminoids100 mgCurcumin in GI Select against 550 products100 mg per serving; the middle half of products list 50 mg to 400 mg, the median 200 mg.100 mg

57% of 550 products listing curcumin give more (median 200 mg).

Slippery Elm, Powder100 mgSlippery Elm in GI Select against 232 products100 mg per serving; the middle half of products list 50 mg to 300 mg, the median 150 mg.100 mg

59% of 232 products listing slippery elm give more (median 150 mg).

Marshmallow, Powder100 mgMarshmallow in GI Select against 290 products100 mg per serving; the middle half of products list 50 mg to 224 mg, the median 100 mg.100 mg

44% of 290 products listing marshmallow give more (median 100 mg).

GutGardas Deglycyrrhizinated Licorice Root Extract75 mgLicorice in GI Select against 888 products75 mg per serving; the middle half of products list 42 mg to 300 mg, the median 100 mg.75 mg

52% of 888 products listing licorice give more (median 100 mg).

Source: NIH ODS Dietary Supplement Label Database, label 334929 (entered September 25, 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?

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 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 GI Select'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
Suggested use: 1 scoop with 8 oz water or beverage of choice, once per day or as directed by your healthcare professional.
Warnings
Warning: If you are taking medication, have a medical condition or an upcoming medical procedure, or are pregnant or nursing, consult a physician before using.
If adverse reactions occur, discontinue use and consult your healthcare practitioner.
Keep out of reach of children.
Contains crustacean shellfish (from shrimp and crab shells).
Allergens and what it does not contain
Does not contain gluten.
Storage
Store sealed in a cool, dry place.

Source: label statements in DSLD label 334929.

What else is on the label?

Other ingredients: Malic Acid, Lemon Flavor, Natural, Monk Fruit Extract.

How many labels does GI Select have?

3 labels are on file under this name since January 24, 2024: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 334929 (current) Entered September 25, 2025 · on the market · 237 grams · UPC M129
  2. Label 309304 Entered March 22, 2024 · off the market March 4, 2025 · 240 grams · UPC M129
  3. Label 306489 Entered January 24, 2024 · off the market March 4, 2025 · 120 grams · UPC M011

DSLD also links this label to: GI Select Powder (image difference, same product), GI Select Powder (image difference, same product).

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

Who makes it?

The label names Moss Nutrition Products, Inc. (distributor), Hadley, MA. All Moss Nutrition products.

Where next?