BioStacks
Best for
Ingredients (4)
Iron
100%Dose
30 mg
Target
15–45 mg
Form
Premium
Vitamin B12
100%Dose
400 mcg
Target
250–5000 mcg
Form
Premium
Folate
100%Dose
400 mcg dfe
Target
400–800 mcg
Form
Premium
Vitamin C
100%Dose
100 mg
Target
25–200 mg
Form
Budget
Other Ingredients (3)
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
LeucineFlow Aid
Branched-chain amino acid used as a processing aid
How to Take It
Best taken in the morning
Best absorbed on an empty stomach with vitamin C. If it upsets your gut, take it with a light meal instead.
On an empty stomach
Keep it away from coffee, tea and dairy
Space it a couple of hours from Calcium, Zinc, Magnesium, Manganese and Green Tea Leaf Extract
On the label
As a dietary supplement, take 1 capsule daily, with meals. Do not exceed more than 1 capsule daily unless directed by your healthcare practitioner.
Labels usually say “with food” because it's gentler on the stomach, not because it absorbs better. Fasted absorbs more — start there, and switch to a light meal if it bothers you.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$28.52
Pricier than 85% of 138 iron 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.