BioStacks
Best for
Ingredients (2)
Coral Calcium
100%Dose
1000 mg
Target
200–600 mg
Form
Budget
Calcium
100%Dose
420 mg
Target
200–600 mg
Form
Budget
Other Ingredients
No other ingredients listed
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
On the label
1/4 teaspoon 1 to 2 times daily, mixed with 8 ounces of water or juice.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$9.25
Cheaper than 90% of 638 calcium 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.