Instant Savings
In 1000+ people's carts

Nature Made Magnesium Oxide 400mg Softgels, 150 ct.

Item # 225382
Current price is Now $9.48
was $13.48
$0.06/ea
$4 off
Limit 5
Ends Aug 16
Prices may vary in club and online
How do you want your item?

Shipping

Free for Plus on eligible orders over $50
Columbus, 43215
Return or replace anytime.
Sam's credit card
Get a $30 statement credit when you open an account and use it to make $30 in eligible Sam's Club purchases within 30 days¹.

Highlights

  • One 150 count bottle of Nature Made Magnesium 400 mg Softgels
  • Supports muscle relaxation, heart, nerve and bone health†
  • Each tablet contains Extra Strength 400 mg Magnesium Oxide
  • Magnesium helps support the production of Melatonin

Nature Made CoQ10 400mg Softgels, 90 ct. $37.98 $0.42/ea

Nature Made CoQ10 400mg Softgels, 90 ct.
current price $37.98
$0.42/ea

Nature Made CoQ10 400mg Softgels, 90 ct.

4.7853 out of 5 Stars. 801 reviews
Sponsored
Nature Made Magnesium Oxide 400mg Softgels, 150 ct.
Nature Made Magnesium Oxide 400mg Softgels, 150 ct.
Hero image 0 of Nature Made Magnesium Oxide 400mg Softgels, 150 ct., 0 of 10

About this item

Product details

Nature Made Extra Strength Magnesium Oxide 400 mg Softgels are Magnesium supplements that help support muscle relaxation, nerve health, heart health, bone health, and they help convert the food you eat into cellular energy. This Magnesium supplement 400 mg is gluten free, and has no synthetic dyes, no artificial flavors, and no preservatives. These Nature Made Magnesium 400 mg Softgels are sourced from high quality ingredients and provide 400 mg of Magnesium for those whose diet is lacking in magnesium-rich foods. 

What is Magnesium?

Magnesium is a mineral that assists in more than 300 metabolic reactions in the body—from supporting nerve function to regulating muscle function to maintaining bone density. Magnesium can naturally be found in legumes, nuts, seeds and yogurt.†

Who should take Magnesium?

Magnesium has been identified as a common dietary shortfall. Over 50% of US adults do not consume enough Magnesium in their diets (1). This means that supplementation is important for many people. Health experts recommend a daily intake of 400–420 mg/day for men and 310–320 mg/day for women.

(1) Reider, Carroll A et al. “Inadequacy of Immune Health Nutrients: Intakes in US Adults, the 2005-2016 NHANES.” Nutrients vol. 12,6 1735. 10 Jun. 2020, doi:10.3390/nu12061735

What is Magnesium good for?

Magnesium assists hundreds of metabolic reactions, helping support bone health, nerve and muscle function, and cellular energy production. As if that wasn't enough, it also helps support the production of Melatonin. It's a mineral with one heck of a job description.†

Adults take one of these 400 mg Magnesium softgel dietary supplements daily with water and a meal. Nature Made supplements are quality you can trust. *Based on a survey of pharmacists who recommend branded vitamins and supplements.

info:
If the item details above aren't accurate or complete, we want to know about it. 

Specifications

  • Use Instructions: Adults take one of these Magnesium Softgels 400 mg daily with water and a meal
  • Purchase Includes: 150 count
  • FSA/HSA Eligible: No
  • Allergen Warnings: CAUTION: Do not exceed one softgel daily or take with other products that contain magnesium, unless recommended by your physician. Product may cause gastrointestinal disturbance, including diarrhea. Consult your physician before use if you have kidney disease or are taking medication
  • Ingredients: Magnesium (as Magnesium Oxide), Vegetable Oil (Soybean Oil and/or Medium Chain Triglycerides Oil), Gelatin, Glycerin, Lecithin, Colors Added (Including Carmine)

Indications

Health Concern

Bone & Joint Health

Member ratings & reviews

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 423 reviews

Aug 23, 2025
Erica
5 out of 5 stars review

Verified Purchase

Magnesium

I heard magnesium helps with sleep and decided to try a supplement to see if it works. When I took during the morning I didn’t see a difference in my sleep but when I too it in the evening I was shocked when I had slept for 7 hours straight!

Helpful?0ZGQ9DO6MHOY3160402883
Aug 4, 2025
Deb
5 out of 5 stars review

Verified Purchase

Great for leg cramps

My husband and I both take this at night for leg cramps. Works great. Even though they seem large they are easy to swallow due to the coating.

Helpful?0ZGQ9DO6MHOY3160402883
Sep 13, 2024
Prissy
5 out of 5 stars review

Verified Purchase

Relief

I have really bad lseverel eg cramps or should i say charlie horses i have tried pickle juice but it stopped working after a while i have been using this magnesium for a couple of months and it seems to working so if you have bag leg cramps give it a try

Helpful?0ZGQ9DO6MHOY3160402883