BioStacks
Best for
Ingredients (4)
Vitamin D3
100%Dose
3000 IU
Target
1000–5000 IU
Form
Premium
Vitamin B12
2%Dose
6 mcg
Target
250–5000 mcg
Form
Premium
Iodine
100%Dose
150 mcg
Target
150–500 mcg
Form
Not listed
Iron
33%Dose
5 mg
Target
15–45 mg
Form
Not listed
Other Ingredients
No other ingredients listed
How to Take It
Best taken in the morning
The Vitamin B12 in it is what pulls this toward the morning. Take it with a meal containing fat — the vitamin D in it absorbs poorly without one.
With a meal containing fat
Iron 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.
Keep it away from coffee, tea and dairy
Space it a couple of hours from Calcium, Zinc, Magnesium, Manganese and Green Tea Leaf Extract
General guidance based on the ingredients, not a substitute for the label or your doctor.
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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.