Skip to Main Content
Sam's Club
Sam's Club
All Departments
All Services
Customer reviews for Nature Made Magnesium Oxide 400mg Softgels, 150 ct. for
Nature Made Magnesium Oxide 400mg Softgels, 150 ct.
4.8 out of 5 stars
stars
2,314 ratings433 reviews
  1. 5 stars87% (2,021)
  2. 4 stars7% (164)
  3. 3 stars2% (57)
  4. 2 stars0% (10)
  5. 1 star3% (62)

Member photos

Sort by |
Showing 21-30 of 433 reviews
Nov 23, 2017
Reviewer name: Papa Dave
5 out of 5 stars
5 out of 5 stars review

Leg Cramp relief

I'm 67 yrs old and I suffer from nightly leg cramps. Since I've started taking these magnesium soft gels, combined with a potassium supplement, the leg cramps are a lot less frequent and not as bad. It also appears that the cramps seem to be happening at longer intervals. I just glad something's working.

Helpful?0ZGQ9DO6MHOY3160402883
Aug 25, 2024
Reviewer name: Mangohead69
1 out of 5 stars
1 out of 5 stars review

Magnesium Oxide

This product is 400mg of Magnesium Oxide which may help relieve digestive problems like heartburn and constipation. It is almost entirely unabsorbed by the body, so it is not a good supplement to help raise magnesium levels. Buy Magnesium Citrate or Glycinate instead.

Helpful?0ZGQ9DO6MHOY3160402883
reply from Nature Made

Nature Made offers a variety of magnesium supplements based on individuals needs. Please consult with your healthcare provider to see which magnesium supplement would be right for you.

Jan 3, 2024
Reviewer name: Katy
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Horrible smell

There was a horrible smell when I opened this bottle of Magnesium. I had to throw them away.

Helpful?0ZGQ9DO6MHOY3160402883
reply from Nature Made

Thank you for reaching out and sharing your experience. As we continuously look for opportunities to improve our products, we will share your feedback with our Product Team.

Mar 18, 2026
Reviewer name: MISTERDAVE
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

RECOMENT for those over 55

WORKS GREAT FOR THIS OLE GUY !

Review from walmart.com
Helpful?0ZGQ9DO6MHOY3160402883
Aug 21, 2023
Reviewer name: AG
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Not absorbed well

Wrong kind if magnesium. I found out after my purchase, we should be using magnesium citrate.

Helpful?0ZGQ9DO6MHOY3160402883
reply from Nature Made

Thank you for being in touch and for the feedback provided. We're so sorry to hear of your disappointment. Your comments will be shared with our Product Team.

May 22, 2026
Reviewer name: April C
3 out of 5 stars
3 out of 5 stars review

Verified Purchase

Magnesium

I've only just started taking them. We‘ll see.

Helpful?0ZGQ9DO6MHOY3160402883
reply from Nature Made

Thanks for adding Nature Made to your Wellness journey!

Apr 11, 2026
Reviewer name: Kathy
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Sad product. I wasted my money!

I can't feel that it works!

Helpful?0ZGQ9DO6MHOY3160402883
reply from Nature Made

Thanks for reaching out. Sorry to hear that the product didn't work out for you. Please consult with your healthcare provider to see what options would be best for you.

Aug 19, 2026
Reviewer name: Bob
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Magnesium, doctor recommended.

The price was right.

Helpful?0ZGQ9DO6MHOY3160402883
Aug 27, 2024
Reviewer name: Robin
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

Over all

Smelled like fish oil. I should have returned … I use magnesium all the time , but I’ve never seen any like this before

Helpful?0ZGQ9DO6MHOY3160402883
Jun 18, 2026
Reviewer name: Myra
1 out of 5 stars
1 out of 5 stars review

Verified Purchase

These are a scam.

Review from walmart.com
Helpful?0ZGQ9DO6MHOY3160402883