Magnesium Oxide 400 mg
The Vitamin Shoppe
Score 58
A very economical magnesium oxide supplement, primarily designed to support digestive regularity rather than broad systemic magnesium benefits.
Score 58
A very economical magnesium oxide supplement, primarily designed to support digestive regularity rather than broad systemic magnesium benefits.
Analysis
This product from The Vitamin Shoppe provides 400mg of magnesium in the oxide form per capsule. Magnesium oxide is characterized by its high elemental magnesium content and very low bioavailability for systemic absorption, meaning it's not readily utilized by the body for widespread functions.
Its main application is typically as an osmotic agent in the digestive tract, drawing water into the bowels to help soften stool and promote regularity. For individuals experiencing occasional constipation, this can be a very cost-effective solution.
However, for those looking to address magnesium deficiencies for benefits such as muscle function, nerve health, or bone density, more bioavailable forms of magnesium would generally be more effective. This product is more of a targeted digestive aid.
Pros
- Very economical with a low price per serving.
- Contains a high amount of elemental magnesium per capsule.
- Effective for supporting occasional bowel regularity.
- Simple, single-ingredient formulation.
Cons
- Poor systemic absorption; not ideal for general magnesium repletion.
- May cause digestive discomfort or diarrhea in some individuals.
- Limited benefits for goals beyond digestive support.
Warnings
- May cause loose stools or stomach upset; reduce dose if this occurs.
- Not recommended for addressing systemic magnesium deficiencies.
- Consult a professional if you have kidney issues or are taking other medications.
$16.99($0.08 per serving)
 iHerb | $ 16.99 |
Goals
Impact
Highest effect
Magnesium oxide is commonly used as an osmotic laxative, effectively drawing water into the intestines to aid bowel movements. This product is well-suited for supporting digestive regularity.
Impact
Moderate effect
While it contains magnesium, the limited bioavailability of magnesium oxide means it's not the best choice for comprehensive general health support. Its contribution to overall well-being is primarily through its digestive action.
Impact
Moderate effect
While magnesium supports heart health, the poor systemic absorption of magnesium oxide limits its effectiveness for this goal. It's not an efficient way to contribute to cardiovascular wellness.
Impact
Moderate effect
Magnesium is crucial for bone health, but the low systemic absorption of magnesium oxide means it may not be an efficient method to increase magnesium levels for bone density. Other forms are generally preferred.
Impact
Lower effect
Magnesium is involved in muscle function, but the poor absorption of magnesium oxide makes it ineffective for systemic muscle support. Individuals focused on fitness benefits would likely look for different magnesium forms.
Impact
Lower effect
Effective sleep support from magnesium requires systemic absorption. Given magnesium oxide's low bioavailability, this product is unlikely to offer significant calming or sleep-promoting benefits.
Impact
Lower effect
Magnesium's role in stress management depends on its systemic availability to affect nerve and brain function. Magnesium oxide's poor absorption limits its potential for stress relief.
Ingredients
| Ingredient | Amount per serving |
|---|---|
Magnesium | 400 mg |
Magnesium 55
This product supplies magnesium in the oxide form, which, despite its high elemental content, has poor systemic absorption. It is more effective as a digestive aid than as a general magnesium supplement.
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