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Magnesium Oxide 400
Comparables by Windmill
Overview
This supplement uses magnesium oxide, a form of magnesium with low bioavailability. While it contains 480mg of elemental magnesium per serving, a significant portion of this magnesium is not absorbed and instead exerts an osmotic effect in the intestines, making it more effective as a laxative than for addressing systemic magnesium deficiency. Its effectiveness for overall magnesium status is thus limited compared to other forms.
The Good
Cost-effective source of magnesium, making it an accessible option for some.
Can be effective for relieving occasional constipation due to its osmotic laxative properties.
High elemental magnesium content per serving, although poorly absorbed.
The Bad
Poor bioavailability of magnesium oxide compared to other forms, meaning less magnesium is absorbed for systemic use.
High dose of magnesium oxide likely to cause laxative effects and digestive upset (nausea, diarrhea, abdominal cramping).
May not effectively raise systemic magnesium levels for general deficiency due to low absorption.
Is it for you?
Best For: Generally safe for healthy individuals, but the high dose of magnesium oxide specifically can cause gastrointestinal side effects such as diarrhea and abdominal cramping., Excess magnesium is eliminated by the kidneys; however, individuals with kidney issues should avoid this supplement, as it can lead to magnesium toxicity.
Skip If: You're on blood thinners or have food allergies