BioStacks
Best for
Ingredients (3)
Potassium
100%Dose
160 mg
Target
99–500 mg
Form
Budget
Magnesium
100%Dose
100 mg
Target
100–400 mg
Form
Budget
Dietary Fiber
10%Dose
1 g
Target
10–30 g
Form
—
Other Ingredients (4)
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
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
Best taken in the evening
The Magnesium in it is what pulls this toward the evening. Take it with food — the potassium in it is what makes this kind of product feel nauseating on an empty stomach.
With food
Keep it away from medication and mineral supplements
Space it a couple of hours from Iron and Calcium
On the label
Directions: Take two tablets daily or as directed by your healthcare practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$27.78
Near the median of 574 magnesium 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.