Magnesium Supplement
Nature Made Magnesium Oxide 400mg
- 60/100 science score
- $8 price
Overview
Effectiveness limited by magnesium oxide's poor bioavailability (4-25% absorbed per human studies), despite 400 mg elemental meeting RDA; only ~12 specific RCTs vs hundreds for magnesium generally, with metas supporting constipation but mixed for cramps/BP. Safety excellent with no serious events in trials spanning weeks-months and low systemic absorption minimizing risks. Quality solid via brand's USP/ConsumerLab track record but no product-specific elite certifications or COA transparency. Ove
Key strengths
- Provides 100% DV (400 mg elemental) for muscle/nerve/bone/heart support per NIH
- Affordable at $0.11/serving (110 ct $12.13 Amazon)
- Gluten-free, no artificial flavors/colors/preservatives; Nature Made USP brand standard
Our analysis
Average magnesium oxide supplement providing RDA dose but hampered by poor bioavailability limiting effectiveness for systemic benefits like BP or muscle support (moderate evidence from limited oxide RCTs). Safe for short-term use with low GI risk. Opt for better-absorbed forms unless for constipation.
Frequently asked questions
- Is Nature Made Magnesium Oxide 400mg worth buying?
- Nature Made Magnesium Oxide 400mg has a Verify Influencers trust score of 60/100 based on ingredient quality, clinical evidence, and third-party testing.
- What is the trust score for Nature Made Magnesium Oxide 400mg?
- Nature Made Magnesium Oxide 400mg scored 60 out of 100 in our science-backed analysis, which evaluates ingredient dosages against clinical literature and manufacturing transparency.
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