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Natural Factors
Gastro-Assist™ with Mastic Gum, Saccharomyces Boulardii & Zinc L-Carnosine, 60 Vegetarian Capsules
2 Capsules × 2/day
What it does
A combination of 6 label ingredients.
Saccharomyces boulardii
saccharomyces boulardiiPremium
Some preparations may reduce antibiotic-associated diarrhea; benefits depend on strain, exposure and patient population.
Zinc
zinc l-carnosinePremium
Supports normal immune function, wound healing, and protein and DNA production.
Ingredients (6)
Bifidobacterium longum BB536®
Amount not found
Other ingredients
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
Lab testing
How to take it
With food
Space it a couple of hours from Iron and Calcium
Label directs 2 servings — keep one for the evening
On the label
2 capsules 2 times per day or as directed by a health professional.
Price check
$43.37
Pricier than 96% of 219 zinc supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.
Not medical advice. Consult your healthcare professional.