Maxi Cal Mag Fizz Powder, 13.75 Fluid Ounce

Calcium 500 mg and magnesium 250 mg are useful supplemental amounts, but the vitamin D3 amount is stated as 500 activity without a clear unit, leaving the adequacy of the full formula unresolved.

Calcium and magnesium citrate have a recognized practical solubility advantage over less soluble carbonate forms, while the identified cholecalciferol is a conventional vitamin D3 form.

Assumes one labelled 6.5 g serving once daily because no explicit dosing directions are supplied; the container states 60 servings.

The vitamin D3 line gives 500 activity without a clear unit, although its 125% Daily Value suggests a likely intended amount; the supplied photograph reading does not resolve it.

The stated calcium, magnesium, and vitamin D3 forms are a conventional combination without a demonstrated formula-specific strength or mismatch.

No specific contaminant or problematic additive is identified, but the GMP claim is not accompanied by named independent quality testing.

Vitamin D3 is assessed as a substantive component of the complex rather than as a separate supporting ingredient.