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The Best Magnesium Oxide 400Mg Capsules of 2023 – Reviewed and Top Rated

2,352 Reviews Scanned

SaleRank No. #1
Nature Made Extra Strength Magnesium Oxide 400 mg, Dietary Supplement for Muscle Support, 110 Count
  • Muscle support supplement: contains one 110 count bottle of Nature Made Extra Strength Magnesium 400 mg Softgels for a 110-day supply
  • Nature Made Magnesium Oxide 400 mg is a dietary supplement that helps support nerve health, muscle health and heart health
  • This Nature Made Magnesium Oxide supplement also supports healthy bones and teeth and helps convert the food you eat into cellular energy
  • Adults take one of these Magnesium Softgels 400 mg daily with water and a meal.
  • These gluten free Nature Made Magnesium 400 mg Softgels have no synthetic dyes, no artificial flavors, and no preservatives
SaleRank No. #2
Magnesium 400mg [High Potency] Supplement – Magnesium Oxide for Immune Support, Muscle Recovery, Leg Cramps, Relaxation - 120 Tablets
  • ☑️ PROMOTES ENERGY PRODUCTION*
  • ☑️ SUPPORTS MUSCLE, BONE AND NERVE HEALTH*
  • ☑️ SUPPORTS HEALTHY HEART RHYTHM AND BLOOD PRESSURE*
  • ☑️ PROMOTES REST AND RELAXATION*
  • ☑️ HELPS ABSORPTION OF CALCIUM AND POTASSIUM*
Rank No. #3
Magnesium Oxide 400mg – Once Daily Mineral Formula That Supports Energy Production & Muscle Relaxation, Promotes Regularity (200 Capsules) by The Vitamin Shoppe
  • Magnesium Oxide: This special formula contains magnesium oxide Magnesium is a mineral that functions as a coenzyme for nerve/muscle function, regulation of body temperature, energy metabolism, DNA/RNA synthesis, and the formation of bones.
  • DIRECTIONS: As a dietary supplement, take one (1) capsule daily, preferably with a meal.
  • WARNING: Consult your physician prior to use if you are pregnant, nursing, have any medical condition or are taking any medication. Keep out of reach of children.
  • DOES NOT CONTAIN: Yeast , artificial colors or flavors. , citrus , corn , dairy , fish , gluten , preservatives , salt , soy , starch , sugar , wheat
  • Number of Servings: 200 Servings
Rank No. #4
Cypress Pharmaceutical, Inc.- Magnesium Oxide 400 mg. - 120 Tablets
  • Important for many systems in the body especially the muscles and nerves.
  • (061833)
Rank No. #5
Magnesium 400mg Softgels | 120 Count | Magnesium Oxide Supplement | Non-GMO, Gluten Free | by Piping Rock
  • Essential Mineral Strength
  • Extra Strength Formula
  • Quick-Release Soft Gels
  • Non-GMO and Gluten Free
  • Laboratory Tested, using Trusted Ingredients
Rank No. #7
Magnesium Oxide 400mg 120 Tablets 3 Pack
  • Brand New in box. The product ships with all relevant accessories
SaleRank No. #8
Wonder Labs Magnesium Oxide 400, 483mg of Magnesium Oxide Pharmaceutical Grade** Compare to MAG-OX 400 ® - 250 Tablets
  • Compare to the Active ingredients in Mag-Ox 400 (483mg of elemental Magnesium as Magnesium Oxide)
  • Can help support the body with constipation, magnesium oxide also is known for how it Helps transport calcium and potassium ions through cell membranes.
  • Promotes Bone Mineralization and Cardiovascular Health*
  • Helps nutritionally support healthy cardiovascular system*
  • Used in 300+ enzyme systems for the body
Rank No. #10
Extra Strength Magnesium Oxide 400 mg Softgels, 60 Count
  • For a limited time, you may receive either bottle while we update our packaging. Both have the same great product inside. Based on new FDA regulations, you may also notice a change in the unit of measure and/or daily value for certain products.
  • Contains a 60-day supply of Nature Made Extra Strength Magnesium 400 mg Softgels, 60 softgels per bottle.
  • Supports nerve, muscle, heart and bone health.
  • Adults, take 1 softgel daily with water and a meal.
  • Guaranteed to meet our high quality standards. Made from carefully selected ingredients under strict manufacturing processes. No synthetic dyes, no artificial flavors, no preservatives, gluten free.
Rank No. #11
Carlson - Magnesium Gels, 400 mg of Magnesium per Softgel, Heart & Muscle Support, Magnesium Gel Caps, Bowel Function, Magnesium Supplement, 250 Softgels
  • CARDIOVASCULAR SYSTEM HEALTH - Carlson Magnesium Gels help to promote cardiovascular system and blood vessel health.
  • HEALTHY MUSCLE FUNCTION - Carlson Magnesium Supplements supports healthy muscle function and promote quicker recovery and overall comfort.
  • HELPS PROMOTE REGULARITY - Carlson Magnesium softgels help maintain healthy bowel function and the utilization of calcium and potassium.
  • IFOS AND IGEN NON-GMO CERTIFIED - To protect the effectiveness of the nutrients found in our products, Carlson employs manufacturing techniques that avoid the use of excessive heat, moisture, and solvents to protect nutrient content.
  • FRESHNESS, POTENCY, AND PURITY GUARANTEED - Like all Carlson products, Magnesium Gels are tested by an FDA-registered laboratory for freshness, potency, and purity.
Rank No. #12
MD. Life Magnesium Oxide Supplement – 90 Capsules - High Absorption Magnesium Supplement for Vascular Health, Leg Cramps, Magnesium for Sleep - Non GMO
  • MAGNESIUM OXIDE SUPPLEMENT: Magnesium, a mineral that the human body absolutely requires. Magnesium aids in the absorption of calcium for strong bones and teeth.
  • CELLULAR ENERGY: Magnesium supplements are important for aiding in the process of turning fat, protein, and carbs into energy, supporting the production and release of energy from cells; Up to 75% of Americans consume insufficient amounts of magnesium.
  • HEALTH SUPPORT: Magnesium vitamins may support healthy cardiac rhythms, normal muscle and nerve function and promotes glucose metabolism.
  • THIRD PARTY TESTED: Every batch and ingredient in our quality assurance program undergoes third party testing that is above industry standards. Our dedication to purity and potency is supported by our well crafted recipe. Having third party certification means these products comply with specific standards set for safety, quality and performance.
  • DOCTOR DESIGNED, QUALITY ASSURED: MD. Life Magnesium Oxide is expert formulated and made in small batches with superior ingredient sourcing. Made and packaged in the USA inside our FDA registered facility.
Rank No. #13
Amazing Formulas Magnesium Oxide 500mg 90 Capsules Supplement | Non-GMO | Gluten Free | Made in USA
  • Magnesium Oxide 500mg Per Serving Supplement
  • 90 Servings Per Bottle, 1 Capsule Per Serving
  • Non-GMO, Gluten Free, Third Party Tested
  • Manufactured in accordance with GMP Standards
  • Proudly made in the USA with Guaranteed Purity & Potency
SaleRank No. #14
Mag-Ox Magnesium Supplement, Pharmaceutical Grade Magnesium Oxide 483mg, Most Concentrated Form of Magnesium, 120 Tablets
  • Mag-Ox is a mineral supplement made from magnesium oxide
  • Magnesium supports over 300 chemical reactions in the body – and Mag-Ox is at the center of them all: Magnesium is critical in helping convert carbohydrates, protein and fat into energy – helping support the formation and release of energy from cells
  • Mag-Ox is the healthy energetic life: Multivitamins deliver only a fraction of the Recommended Daily Allowance for magnesium; Mag-Ox meets or exceeds the RDA by delivering 482mg of magnesium per 2 tablet dose
  • Mag-Ox delivers the purest form of magnesium, to help you live a longer, healthier life: Mag-Ox magnesium tablets are sugar free, gluten free, and do not contain corn, soy, milk, eggs, shellfish, fish, yeast or animal byproducts
  • Mag-Ox magnesium supplements are coated for easy swallowing; take 2 tablets daily with food or as directed by a healthcare professional; you may only need to take 1 tablet per day
Rank No. #15
Nature's Bounty Magnesium 400 mg, 75 Softgels
  • Helps maintain healthy bones
  • Supports muscle health. Involved in protein formation
  • One rapid release liquid softgel per day
  • These statements have not been evaluated by the Food and Drug Administration
  • Packaging may vary due to redesign, same great product ingredients
Rank No. #16
HOLLEGEND Magnesium Oxide 400mg Gummies, Magnesium Oxide Chewable Supplement for Muscle, Nerve & Heart Health, Vegan, Pinapple Flavor, 60 Count
  • Magnesium Gummies for Adults Kids - With a pineapple flavor, combine tasty gummies and the benefits of magnesium. Perfect for adults and kids (Kids ages 4-12 take 1 gummy per serving, ages 12+ take 2).
  • 400mg Magnesium Oxide Supplement - Magnesium oxide is one of the most common forms. Bring to life the benefits of magnesium with these magnesium oxide gummies. 2 gummies contain 400mg magnesium, which is high potency.
  • Health Benefits - Magnesium, as an essential mineral, plays an important role in the body. Taking 1-2 magnesium gummies per day may support the nervous system, muscle & heart health, and support healthy bones.
  • Natural Ingredients - These magnesium gummies 400mg are unique and carefully crafted by our Hollegend team. They are made in GMP certified facility, all the ingredients are vegan, non-GMO, gluten-free, and tested by 3rd party.
SaleRank No. #17
NOW Magnesium 400mg, 180 Veg Capsules
  • 400 mg - 180 capsules
  • Free of: sugar, salt, starch, corn, soy, wheat, yeast, gluten, milk
  • Plays a key role in the activation of amino acids for protein biosynthesis
  • It is a required cofactor for an estimated 300 enzymes
  • During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
SaleRank No. #18
NOW Supplements, Magnesium 400 mg, Enzyme Function*, Nervous System Support*, 180 Veg Capsules
  • SUPPORTS ENERGY PRODUCTION: Magnesium is a mineral that is critical for energy production and metabolism, muscle contraction, nerve impulse transmission, and bone mineralization.
  • CRITICAL FOR ENZYME FUNCTION: It is a required cofactor for an estimated 300 enzymes. Among the reactions catalyzed by these enzymes are fatty acid synthesis, protein synthesis, and glucose metabolism.
  • CLASSIFICATIONS/CERTIFICATIONS: Kosher, Vegan, Soy Free, Keto Friendly, Non-GMO, Halal
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968.
SaleRank No. #19
Nutricost Magnesium Oxide 375mg, 240 Capsules - 210mg of Magnesium, Non-GMO, Gluten Free
  • 375mg of Magnesium Oxide Per Serving (210mg of Magnesium)
  • 240 Magnesium Oxide Capsules Per Bottle
  • Non-GMO, Gluten Free, Soy Free
  • High Quality, 3rd Party Tested
  • Made in a GMP Compliant, FDA Registered Facility
Rank No. #20
Nutricost Magnesium Oxide 750mg, 240 Capsules - 420mg of Magnesium, Non-GMO, Gluten Free
  • Extra Strength Magnesium Oxide Supplement
  • 750mg of Magnesium Oxide Per Serving (420mg of Magnesium)
  • 240 Capsules Per Bottle
  • Non-GMO, Gluten Free
  • Made in a GMP Compliant, FDA Registered Facility

Last update on 2023-08-01 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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