10 Best Magnesium Citrate 400mg Capsules of 2026

Last updated on 04/05/2026
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1
9.8
Exceptional
Magnesium Citrate Complex 500 MG for Constipation & Digestion Support | High Absorption Magnesium Supplement | Citrato de Magnesio | Calm & Relaxation | Non-GMO Soy-Free | 60 Mag Citrate Capsules
Nobi Nutrition

Magnesium Citrate Complex 500 MG for Constipation & Digestion Support | High Absorption Magnesium Supplement | Citrato de Magnesio | Calm & Relaxation | Non-GMO Soy-Free | 60 Mag Citrate Capsules

Why we love it
  • Highly absorbable magnesium formula.
  • Supports calm and relaxation.
  • Gentle on the digestive system.
Main Highlights
  • HIGH ABSORPTION MAGNESIUM: Magnesium Citrate (Citrato de Magnesio) is highly soluble in water, making it easy for the body to absorb. Its citrate content also enhances its bioavailability, making it one of the most absorbable forms of magnesium.*
  • 500MG COMPLEX: While pure Magnesium Citrate is well known for being easily absorbed and utilized by the body, Magnesium Oxide has a high percentage of elemental magnesium and is gentle on the digestive system.* Our full spectrum formula contains both to create the perfect balance for everyday supplementation.*
  • SUPPORT CALM & RELAXATION: A good magnesium supplement for men and women helps support proper muscle function.* Magnesium Complex may also support normal calm and sleep.*
  • AID OCCASIONAL CONSTIPATION: Magnesium Citrate 500mg is the best magnesium for constipation and digestion support because it helps to increase the amount of water in the intestines along with supporting normal muscle relaxation.*
  • 2-MONTH SUPPLY: Every serving is just 1 capsule, and each bottle contains 60 magnesium citrate capsules (a 2-month supply). Magnesium Citrate Complex is made without dairy, gluten, GMOs, or soy.
9.8
Exceptional
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Best Value
2
9.6
Superb
Save 25%
Magnesium Citrate 800mg, 180 Capsules, Digestion & Constipation Support, Vegan Safe, Non-GMO, Double Wood Supplements
Double Wood Supplements

Magnesium Citrate 800mg, 180 Capsules, Digestion & Constipation Support, Vegan Safe, Non-GMO, Double Wood Supplements

25% Off
Why we love it
  • Supports occasional constipation relief.
  • Three-month supply of capsules.
  • Manufactured safely in the USA.
Main Highlights
  • OCCASIONAL CONSTIPATION SUPPORT: Magnesium citrate may help hydrate and soften stools for those experiencing occasional constipation
  • THREE-MONTH SUPPLY: Magnesium citrate supplement contains 90 servings of 800 mg (180 capsules with 400 mg each)
  • ROOTED IN QUALITY: Manufactured and Tested in the USA from Globally Sourced Ingredients. Double Wood's Magnesium Citrate is manufactured and tested for microbes and heavy metals right here in the USA from Globally Sourced Ingredients. Plus, it is vegetarian, Non-GMO and gluten-free
  • WE BOTTLE WELLNESS: At Double Wood, we provide pure, potent supplements that deliver exceptional value, all backed by careful sourcing and rigorous third-party testing
9.6
Superb
Save 25%
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3
9.4
Superb
BulkSupplements.com Magnesium Citrate Capsules - Magnesium Supplement, Magnesium Citrate 400mg - Gluten Free, 4 Capsules per Serving, 360 Count (Pack of 1)
BulkSupplements

BulkSupplements.com Magnesium Citrate Capsules - Magnesium Supplement, Magnesium Citrate 400mg - Gluten Free, 4 Capsules per Serving, 360 Count (Pack of 1)

Why we love it
  • Essential for overall health.
  • Optimal balance of minerals.
  • Easy to integrate into routine.
Main Highlights
  • Foundational Elements for Wellness: Magnesium supplements, in Magnesium Citrate capsules, are the cornerstones of health, playing critical roles in various bodily functions to your overall health & well-being. Ensure your body has the right building blocks for vitality.
  • Designed for Optimal Health: Elevate your daily wellness routine with our Magnesium Citrate 400mg capsules. These are not just supplements; Magnesium Citrate supplement is a daily investment in your wellbeing, meticulously formulated to ensure your body receives the perfect balance of essential minerals for optimal health.
  • Easy-to-Integrate Nutritional Support: Our Magnesium Citrate 400mg capsules, a magnesium supplement, is designed with your convenience in mind, offering easy-to-swallow capsules that can seamlessly become part of your existing health regimen. Enhance your nutritional intake by taking the recommended dose alongside your first meal of the day.
  • Transparent and Trustworthy: Experience the confidence that comes with choosing a supplement that not only meets rigorous third-party testing but also upholds the principles of clarity and integrity in its formulation and production.
  • Commitment to Excellence: Produced in a facility compliant with strict cGMP standards, our Magnesium Citrate capsules, or Magnesium pills, stand as a testament to our dedication to quality. You can trust in our product's consistency and excellence, batch after batch.
9.4
Superb
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4
9.4
Superb
SOLARAY Magnesium Citrate 400mg - Magnesium Supplement - Bone Health, Muscle, Relaxation and Heart Health Support - Vegan, Gluten Free - 60 Servings, 180 VegCaps
SOLARAY

SOLARAY Magnesium Citrate 400mg - Magnesium Supplement - Bone Health, Muscle, Relaxation and Heart Health Support - Vegan, Gluten Free - 60 Servings, 180 VegCaps

Why we love it
  • Boosts bone and muscle health.
  • Enhances relaxation and vitality.
  • Trusted brand with decades expertise.
Main Highlights
  • MAXIMUM MAGNESIUM POWER - Get 400 mg of pure magnesium citrate per serving to support strong bones, muscles, and relaxation. Our capsules are perfect for men and women looking to boost vitality
  • SUPPORTS MUSCLE AND BONE HEALTH - Unwind naturally with magnesium citrate. This powerful magnesium supplement is formulated to help support muscles, bones and relaxation
  • ENHANCED BIOAVAILABILITY FOR MAXIMUM ABSORPTION - Our supplement is formulated with chelated magnesium citrate to improve mineral absorption, ensuring your body gets the full benefits of magnesium
  • COMPLEMENTARY HERBAL BLEND - Our magnesium citrate capsules include a herbal blend of alfalfa, watercress, and parsley for added nourishment and balanced health
  • BACKED BY DECADES OF EXPERTISE - With over 50 years in supplements, Solaray combines tradition and innovation to deliver high-quality magnesium citrate capsules you can trust for your health journey
9.4
Superb
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5
9.3
Superb
Magnesium Citrate 400mg Per Serving, 300 Veggie Capsules – Chelated, Easily Absorbed, Purified Trace Mineral – Muscle, Heart, & Digestive Support – Non-GMO
DEAL SUPPLEMENT

Magnesium Citrate 400mg Per Serving, 300 Veggie Capsules – Chelated, Easily Absorbed, Purified Trace Mineral – Muscle, Heart, & Digestive Support – Non-GMO

Why we love it
  • Gentle on the digestive system.
  • Supports overall wellness effectively.
  • Non-GMO and allergen-free formula.
Main Highlights
  • Special Features – Extra strength elemental magnesium citrate contained in natural vegetarian capsules. One of the gentlest forms of magnesium that exists and uses high concentrated chelated magnesium for easy digestion and absorption.
  • Benefits & Use – This high absorption magnesium provides benefits to over 300 different functions around the body for overall general wellness. Taking it on a regular basis may support bone, heart, joint, digestive, and muscle heath.
  • Dosage & Servings – 3 vegetarian capsules per serving to receive 400mg of pure magnesium citrate. Each bottle offers 300 veg capsules and over a 3-month supply.
  • Purpose – Minerals are an essential micronutrient and chelated magnesium offers an easy and efficient way to up your levels. This version is more stable and can be digested in a more complete form that minimizes waste.
  • Quality Ensured – Non-GMO magnesium supplements that are 3rd party lab tested and passed. Made without gluten, dairy, eggs, peanuts, soy, wheat, & yeast.
9.3
Superb
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6
9.1
Superb
Bluebonnet Nutrition Magnesium Citrate, 400mg of Magnesium, Maximum Absorption, Supports Immune Health & Energy Production*, Soyfree, Gluten-Free, Non-GMO, Kosher, Dairy Free, Vegan, 120 Caplets
BlueBonnet

Bluebonnet Nutrition Magnesium Citrate, 400mg of Magnesium, Maximum Absorption, Supports Immune Health & Energy Production*, Soyfree, Gluten-Free, Non-GMO, Kosher, Dairy Free, Vegan, 120 Caplets

Why we love it
  • Supports energy production efficiently.
  • Contains essential magnesium citrate.
  • Vegan and allergen-free formula.
Main Highlights
  • Formulated with 400 mg of Magnesium from Magnesium Citrate per serving
  • Supports Energy Production ♦ Critical for Enzyme Function ♦
  • 120 Vegetable Capsules, 60 Servings
  • Soy-Free, Gluten-Free, Non-GMO, Kosher Certified, Dairy-Free, Vegan
  • Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans and sesame. Also free of gluten, barley, rice and sugar.
9.1
Superb
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7
9.0
Superb
NOW Foods Magnesium Citrate 400 Milligram 120 Veg Capsules (Pack of 2)
NOW Foods

NOW Foods Magnesium Citrate 400 Milligram 120 Veg Capsules (Pack of 2)

Why we love it
  • Enhances daily energy levels.
  • Essential for enzyme performance.
  • Promotes overall metabolic health.
Main Highlights
  • 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.*
  • 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.
9.0
Superb
Amazon Logo
8
8.9
Excellent
Magnesium Citrate Powder Capsules 400mg - 180 Count Veg Caps - PhiNaturals Supplements - Nervous System Support and Enzyme Function
PhiNaturals

Magnesium Citrate Powder Capsules 400mg - 180 Count Veg Caps - PhiNaturals Supplements - Nervous System Support and Enzyme Function

Why we love it
  • Supports muscle relaxation effectively.
  • Gentle digestive relief without discomfort.
  • Convenient capsules for busy lifestyles.
Main Highlights
  • Nervous System & Muscle Support: Magnesium is an essential mineral for the function of the nervous system as well as the relaxation function of the muscles, including the heart.
  • Enhanced digestive support: Mag citrate at the 400 mg dose can provide gentle yet effective relief for those who struggle with occasional irregularity. Less intestinal discomfort compared to magnesium oxide or magnesium sulfate.
  • Easy-Swallow Small Capsules: Our pure magnesium citrate capsules are formulated for maximum absorption, allowing you to enjoy the benefits without the hassle of powders or liquids, perfect for busy lifestyles.
  • Vegan Friendly and Quality You Can Trust: Each capsule is made with high-quality ingredients in vegetarian capsules, ensuring you receive pure magnesium citrate without inferior ingredients, giving you peace of mind with every dose.
  • Energy and Stress Support: Beyond digestive health, magnesium citrate supports overall wellness, including muscle relaxation and stress relief, making it a valuable addition to your daily supplement routine.
8.9
Excellent
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9
8.8
Excellent
Save 8%
Magnesium Citrate 400mg | 200 Capsules, High Absorption for Sleep, Relax, Leg Cramps, Energy, Extra Strength Easy to Swallow Small Pills for Women & Men, Vegan Supplement for Digestion, Not Tablets
NATURE'S BRANCH

Magnesium Citrate 400mg | 200 Capsules, High Absorption for Sleep, Relax, Leg Cramps, Energy, Extra Strength Easy to Swallow Small Pills for Women & Men, Vegan Supplement for Digestion, Not Tablets

8% Off
Why we love it
  • High absorption for better digestion.
  • Easy to swallow small capsules.
  • Third party tested for quality.
Main Highlights
  • 3+ MONTH SUPPLY - MAGNESIUM CITRATE 400 MG: Our maximum strength Magnesium Citrate 400mg supplements (per serving) are specifically formulated to support for sleep, heart health, bowels and muscle comfort. Scientifically designed to deliver the ultimate combination of high quality, extra strength magnesium and citrate in small pills for calming digestion and high absorption.*
  • SLEEP, HEART, MUSCLES, NERVES: The superior advantage of our Magnesium Citrate is that it comes in mini small sized, easy to swallow capsules. Suitable for women and men, our exclusive formula supports calm sleep, heart health, energy and joints. Our daily mag supplement, also known as Mag Citrate, supports gentle digestive function and regularity and is vegan unlike many magnesium capsules, complex powders & vitamin pills.*
  • HIGH ABSORPTION | OUR MAX POTENCY: Magnesium Citrate capsules is said to be one of the easiest and fastest absorbable forms of magnesium. Each of our capsules contain 200mg of Magnesium Citrate (400mg per serving) without adding magnesium oxide, glycinate, malate, calcium, potassium, zinc, aspartate, chloride, hydroxide threonate or lactate in order to concentrate on more efficient digestion.*
  • MADE IN USA – NON-GMO & VEGAN: Nature’s Branch Magnesium Citrate supplement contains elemental magnesium plus citrate, globally sourced, for the best magnesium experience. Our magnesium comes in vegan capsules and are free from artificial flavors and sweeteners for a non-GMO, gluten free choice.*
  • THIRD PARTY TESTED & TRUSTED QUALITY: Your health matters. Our Magnesium Citrate is third-party tested for purity and potency. Non GMO, vegan, made in the USA with global ingredients, gluten free, sugar free and dairy free. Backed by a commitment to quality and rigorous cGMP industry standards.*
8.8
Excellent
Save 8%
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10
8.8
Excellent
Nutricost Magnesium Citrate 420mg, 240 Veggie Capsules - 60 Servings, Gluten Free, Non-GMO, Vegetarian Friendly
Nutricost

Nutricost Magnesium Citrate 420mg, 240 Veggie Capsules - 60 Servings, Gluten Free, Non-GMO, Vegetarian Friendly

Why we love it
  • High potency magnesium dose.
  • Plant-based and vegan friendly.
  • Manufactured with quality standards.
Main Highlights
  • 240 Magnesium Citrate Capsules Per Bottle (60 Servings)
  • 420mg of (Elemental) Magnesium Per Serving
  • Plant Based Capsules
  • Non-GMO, Gluten Free, Vegetarian Friendly, Soy Free
  • Made in a NSF Certified, GMP Compliant, FDA Registered Facility
8.8
Excellent
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Related Deals You Might Like for Magnesium Citrate 400mg Capsules

📊We scanned 1170 products
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We reviewed the most relevant Magnesium Citrate 400mg Capsules offers across Amazon and leading retailers, covering major brands and models. Our shortlist features trusted names like Nobi Nutrition, Double Wood Supplements, BulkSupplements, SOLARAY, DEAL SUPPLEMENT, BlueBonnet, NOW Foods, PhiNaturals, NATURE'S BRANCH, Nutricost, known for dependable quality and smart design.
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To determine today's best Magnesium Citrate 400mg Capsules, we analyzed 5851 real customer and expert reviews, focusing on satisfaction, real-world performance and long-term reliability. We also weigh each review's relevance, authenticity and freshness for a fair comparison.

Here's what we found:

🏆 #1
Magnesium Citrate Complex 500 MG for Constipation & Digestion Support | High Absorption Magnesium Supplement | Citrato de Magnesio | Calm & Relaxation | Non-GMO Soy-Free | 60 Mag Citrate Capsules

Our overall winner is Magnesium Citrate Complex 500 MG for Constipation & Digestion Support | High Absorption Magnesium Supplement | Citrato de Magnesio | Calm & Relaxation | Non-GMO Soy-Free | 60 Mag Citrate Capsules by Nobi Nutrition. It stands out for the right balance of quality, performance and value.

✨ What sets it apart:
✓Highly absorbable magnesium formula.
✓Supports calm and relaxation.
✓Gentle on the digestive system.
💎 Best Value
Magnesium Citrate 800mg, 180 Capsules, Digestion & Constipation Support, Vegan Safe, Non-GMO, Double Wood Supplements

The best value for most shoppers is Magnesium Citrate 800mg, 180 Capsules, Digestion & Constipation Support, Vegan Safe, Non-GMO, Double Wood Supplements by Double Wood Supplements, with consistently high satisfaction across expert and customer reviews.

💰 Best Deal
Magnesium Citrate 800mg, 180 Capsules, Digestion & Constipation Support, Vegan Safe, Non-GMO, Double Wood Supplements

The strongest deal right now for Magnesium Citrate 400mg Capsules is Magnesium Citrate 800mg, 180 Capsules, Digestion & Constipation Support, Vegan Safe, Non-GMO, Double Wood Supplements at Double Wood Supplements, currently at 25% off.

🔄Our Magnesium Citrate 400mg Capsules ranking is updated regularly to reflect new releases and price changes—check back for the latest picks and deals.