PlainVitamins

Gastro-Assist

by Natural Factors · capsule · 60 Vegetarian Capsules

  • On the market (NIH)
  • UPC 0 68958 01756 3
  • DSLD label 179381
  • Serving 2 vegetarian capsules
  • 30 servings

Gastro-Assist by Natural Factors lists 6 ingredients, 4 with an amount per serving of 2 vegetarian capsules, such as 8 mg of zinc, 260 mg of mastic gum, 200 mg of chamomile extract and 37.5 mg of zinc L-carnosine; 2 give their count of live cultures or enzyme activity instead of a weight. Its current label entered the NIH Dietary Supplement Label Database on July 25, 2018.

What is in Gastro-Assist?

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

Gastro-Assist: Supplement Facts rows against the market (DSLD label 179381, January 2026 release)
IngredientAmount% DVAmong products listing it
Zincas Zinc L-Carnosine8 mg73%Zinc in Gastro-Assist against 13,186 products8 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg8 mg

60% of 13,186 products listing zinc give more (median 11 mg). Per day at the most servings: 16 mg.

Bifidobacterium longum BB536Bifidobacterium longum BB536 PlantPart: whole cell Genus: Bifidobacterium Species: longum Note: 10 billion colony-forming units (CFU)
Saccharomyces boulardiiSaccharomyces boulardii Genus: Saccharomyces Species: boulardii Note: (5 billion) (whole cell)
Mastic Gum260 mgMastic in Gastro-Assist against 41 products260 mg per serving; the middle half of products list 100 mg to 1,000 mg, the median 350 mg.260 mg

51% of 41 products listing mastic give more (median 350 mg). Per day at the most servings: 520 mg.

Chamomile extractChamomile extract PlantPart: flower Genus: Matricaria Species: chamomilla Note: 4:1200 mgGerman Chamomile in Gastro-Assist against 197 products200 mg per serving; the middle half of products list 42 mg to 179 mg, the median 75 mg.200 mg

Higher than 75% of 197 products listing german chamomile (median 75 mg). Per day at the most servings: 400 mg.

Zinc L-Carnosine37.5 mgZinc-l-Carnosine in Gastro-Assist against 36 products37.5 mg per serving; the middle half of products list 34.38 mg to 75 mg, the median 75 mg.37.5 mg

61% of 36 products listing zinc-l-carnosine give more (median 75 mg). Per day at the most servings: 75 mg.

Source: NIH ODS Dietary Supplement Label Database, label 179381 (entered July 25, 2018), 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; 2 ingredients sit inside a blend, so their amounts cannot be compared.

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 Gastro-Assist's, rare ingredients counting for more.

  • GI GuardProtocol For Life Balance 3 shared, 44% alike
  • PyloricilOrtho Molecular Products 3 shared, 37% alike

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 Usage: 2 capsules 2 times per day or as directed by a health professional.
Warnings
Cautions: As with any supplement, consult your health professional before use if you are pregnant, breastfeeding, or trying to conceive, or if you are taking medication, have a medical condition, or anticipate a surgery.
Keep out of the reach of children.
Sealed for your protection. Do not use if seal is broken.
Allergens and what it does not contain
Contains no artificial colors, preservatives, or sweeteners; no dairy, starch, sugar, wheat, gluten, soy, corn, egg, fish, shellfish, animal products, salt, tree nuts, or GMOs.
Storage
For freshness, store in a cool, dry place.

Source: label statements in DSLD label 179381.

What else is on the label?

Other ingredients: Vegetarian Capsule, Magnesium Stearate, Silica.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): isura Non-GMO - Mass spec Documentation Lab tested.

How many labels does Gastro-Assist have?

2 labels are on file under this name since June 23, 2017: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 179381 (current) Entered July 25, 2018 · on the market · 60 Vegetarian Capsules · UPC 0 68958 01756 3
  2. Label 75275 Entered June 23, 2017 · off the market February 2, 2018 · 60 Vegetarian Capsules · UPC 0 68958 01756 3

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

Who makes it?

The label names Natural Factors Canada (manufacturer). All Natural Factors products.

Where next?