Source Naturals Magnesium Chelate Complex, 100 mg - 250 Tablets

Supplement facts

Ingredient	Amount per serving	% daily value
Calcium	65 mg	5%
Magnesium	100 mg	24%

1 tablet 1 to 4 times daily with meals.

Label data from the Dietary Supplement Label Database.

Label data as of 6 Sep 2026

82.5 / 100Very good

A straightforward magnesium supplement with a reasonable low-end supplemental amount per tablet, though the exact chelate form is not specified.

Scoring criteria

Quantity
100 / 100
One tablet provides 100 mg magnesium, a reasonable supplemental amount for general supplementation.
Form
65 / 100
The title identifies a chelate complex, but does not identify the chelate, leaving relevant absorption and tolerability properties unresolved.
Convenience
100 / 100
The lowest labelled routine is one tablet daily, providing 100 mg magnesium, a reasonable low-end supplemental amount.
Label accuracy
100 / 100
The matched panel declares 100 mg magnesium and 65 mg calcium per tablet without an apparent contradiction.
Purity
75 / 100
No product-specific purity testing or contaminant information is provided, so ordinary unresolved quality is appropriate.
Cofactors
0 / 100
The small declared calcium amount has no established complementary role here that warrants cofactor credit.