Magnesium Oxide 400mg Bone & Muscle Support
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Why You'll Love It
Natural Energy
Support your body's natural energy production and promote healthy muscle and nerve function with Magnesium Oxide 400mg — a potent daily dose of one of America's most essential minerals.
Metabolism
400mg of Magnesium Oxide per serving to support cellular energy metabolism and promote overall wellness.
Rest & Recovery
Helps maintain healthy muscle function and supports relaxation after physical activity.
Key Benefit
Promotes nervous system health and helps maintain healthy stress response.
Easy Daily Use
Easy-to-take supplement for those seeking to fill common dietary gaps in magnesium intake.
Certified Quality
Quality you can trust: 50+ years of American supplement expertise from Windmill Health Products.
50+
Years Trusted
GMP
Certified Facility
USA
Manufactured
30-Day
Guarantee
About This Product
Support your body's natural energy production and promote healthy muscle and nerve function with Magnesium Oxide 400mg — a potent daily dose of one of America's most essential minerals.
- 400mg of Magnesium Oxide per serving to support cellular energy metabolism and promote overall wellness
- Helps maintain healthy muscle function and supports relaxation after physical activity
- Promotes nervous system health and helps maintain healthy stress response
- Easy-to-take supplement for those seeking to fill common dietary gaps in magnesium intake
- Quality you can trust: 50+ years of American supplement expertise from Windmill Health Products
Formulated by Windmill Health Products — a trusted American supplement brand for over 50 years, manufactured in an FDA-regulated, cGMP-certified facility.
†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
What's Inside
Serving size: 2 Tablets
Magnesium (as magnesium oxide)
482.6 mg
115% Daily Value
How It Works
Take Daily
Take 2 tablets with food as a dietary supplement or as directed by a healthcare professional.
Absorb & Nourish
Premium ingredients absorb efficiently, delivering targeted nutrition where your body needs it most.
Feel the Difference
Most people notice improvements within 2–4 weeks of consistent daily use. Real results, not hype.
How We Compare
See why customers are making the switch to Moore Vitamins.
Trusted by thousands · 50+ years of quality · Made in the USA
What Customers Are Saying
Based on 2 reviews
Been taking this for about 6 weeks now and definitely notice less muscle cramping after my workouts. My doctor suggested I try magnesium supplements since I was dealing with some leg cramps at night, and this has really helped. The pills are a decent size - not too big to swallow. Only reason I'm not giving 5 stars is because the bottle is pretty small for the price. I go through it pretty quickly taking one daily, so I wish they offered a larger size option. Overall though, good quality supplement and I'll probably reorder when I run out.
Excellent value for a quality magnesium supplement! I've been using this as part of my evening routine for the past 3 months and I'm really impressed. I sleep much better now and my muscles feel less tense after long days at work. The 400mg dose is perfect - not too strong but definitely effective. Shipping was super fast too, arrived in just 2 days. I've tried other brands before but this Windmill one works just as well at a fraction of the cost. Will definitely be stocking up on my next order. Highly recommend for anyone looking for a reliable, affordable magnesium supplement.
Frequently Asked Questions
Most people notice a difference within 2-4 weeks of consistent daily use. Give Magnesium Oxide 400mg Bone & Muscle Support time to build up in your system for the best experience.
Magnesium Oxide 400mg Bone & Muscle Support is generally safe to combine with other supplements. If you take prescription medication, consult your healthcare provider first.
Yes. Our products are manufactured in GMP-certified facilities in the USA and undergo quality testing to verify purity, potency, and ingredient accuracy.
We offer a 30-day satisfaction guarantee. Return any unopened product within 30 days for a full refund - no questions asked.
Store in a cool, dry place away from direct sunlight. Keep the lid tightly closed. No refrigeration required unless specified on the label.
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Magnesium Oxide 400mg Bone & Muscle Support