BioStacks
Best for
Ingredients (3)
Bilberry fruit extract
100%Dose/day
240 mg
Target
80–500 mg
Form
—
Calcium
100%Dose/day
600 mg
Target
200–600 mg
Form
Budget
Phosphorus
100%Dose/day
450 mg
Target
100–500 mg
Form
Budget
Other Ingredients (4)
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
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
How to Take It
Take it anytime
Take with food and split doses above 500 mg — absorption drops at higher single doses.
With food
Keep it away from high-oxalate foods like spinach
Space it a couple of hours from Iron, Magnesium and Zinc
Split into 3 doses across the day
On the label
Take 2 tablets with a meal three times daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$41.45
Pricier than 95% of 29 berry flavonoid pigments 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. 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.