Supplement Comparison Tool

Compare supplement forms side-by-side — bioavailability, cost per serving, timing, and evidence strength for each form.

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Magnesium supplement forms comparison
Form	Bioavailability	Best For	Typical Dose	Monthly Cost	Evidence
Magnesium Glycinate	High	Sleep quality, stress, muscle relaxation	300–400mg elemental	$15–25	Strong
Magnesium Citrate	High	General deficiency, constipation relief	200–400mg elemental	$8–15	Strong
Magnesium L-Threonate	Medium	Cognitive function, brain health	144mg elemental (2g Magtein)	$35–55	Moderate
Magnesium Oxide	Low	Constipation (short-term)	400–500mg	$5–10	Limited
Magnesium Taurate	High	Cardiovascular health, blood pressure	125–500mg elemental	$20–35	Moderate

Costs are approximate US retail estimates. Bioavailability ratings reflect relative absorption compared to other forms of the same supplement. Evidence strength reflects the volume and quality of human clinical data available.

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