BioStacks
Best for
Ingredients (9)
Cinnamon
100%Dose
500 mg
Target
250–1000 mg
Form
—
Gymnema
100%Dose
400 mg
Target
200–800 mg
Form
—
N-Acetyl L-Cysteine
100%Dose
800 mg
Target
600–1800 mg
Form
—
Fenugreek
100%Dose
500 mg
Target
500–1000 mg
Form
—
American ginseng
100%Dose
200 mg
Target
200–400 mg
Form
—
Other Ingredients (1)
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
How to Take It
Take it anytime
Take it with a meal containing fat — the vitamin D in it absorbs poorly without one.
With a meal containing fat
NAC does better on an empty stomach, but something else in this bottle needs food. Taking the whole product with a meal is the better trade — an upset stomach is why most people stop.
On the label
Take 2 to 4 capsules with breakfast and 2 to 4 capsules with lunch or dinner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$34.19
Pricier than 89% of 586 vitamin D 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.