BioStacks
Ingredients (3)
Bifidobacterium longum BB536
90%Dose
2 B CFU
Target
1–100 B CFU
Form
Premium
Zinc
100%Dose
30 mg
Target
15–30 mg
Form
Standard
Chaste Tree Fruit Extract
100%Dose
40 mg
Target
20–40 mg
Form
Budget
Other Ingredients (3)
Rice FlourFiller
Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports). Rice accumulates arsenic from soil at higher rates than other grains. Used as a cheap filler — adds nothing beneficial.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
HypromelloseCapsule
Plant-derived capsule material from cellulose
How to Take It
Best taken in the morning
Live strains survive stomach acid best taken with or just before a meal — after a meal is the worst option. Consistency matters more than the clock.
With food
Keep it away from hot food or drink
Space it a couple of hours from Iron and Calcium
On the label
Take 1 capsule daily with a meal.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$22.46
Pricier than 77% of 220 zinc supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and 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. clinical 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.