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expiredpennysave posted Feb 07, 2026 10:27 AM
expiredpennysave posted Feb 07, 2026 10:27 AM

100-Count Nature's Bounty 500mg Magnesium Supplement Coated Tablets

w/ Subscribe & Save

$3.15

$9.07

65% off
Amazon
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Deal Details
Amazon has 100-Count Nature's Bounty 500mg Magnesium Supplement Coated Tablets on sale for $4.49 - 25% when you 'clip' the coupon on product page - 5% when you check out via Subscribe & Save = $3.15. Shipping is free with Prime or on $35+ orders.

Thanks to Community Member pennysave for sharing this deal.

Note: You must be logged into your account. Coupons are typically one use per account. You have the flexibility to manage your Subscribe & Save subscription at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to an extra 15% savings when you have 5 or more items in your current monthly subscription.

Product Details:
  • Nature's Bounty Magnesium is essential for supporting bone health, and plays an important role in maintaining bone mineralization.
  • As a component in over 200 enzymes in the body, Magnesium is also involved in muscle contractions, nerve impulses, energy metabolism and protein formation.

Editor's Notes

Written by johnny_miller | Staff
  • Our research indicates that this deal is $1.34 less (~29% savings) than the next best available price from a reputable merchant with prices starting from $4.49 at the time of this posting.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by pennysave
Product Info
Community Notes
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Deal Details
Product Info
Community Notes
About the Poster
Amazon has 100-Count Nature's Bounty 500mg Magnesium Supplement Coated Tablets on sale for $4.49 - 25% when you 'clip' the coupon on product page - 5% when you check out via Subscribe & Save = $3.15. Shipping is free with Prime or on $35+ orders.

Thanks to Community Member pennysave for sharing this deal.

Note: You must be logged into your account. Coupons are typically one use per account. You have the flexibility to manage your Subscribe & Save subscription at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to an extra 15% savings when you have 5 or more items in your current monthly subscription.

Product Details:
  • Nature's Bounty Magnesium is essential for supporting bone health, and plays an important role in maintaining bone mineralization.
  • As a component in over 200 enzymes in the body, Magnesium is also involved in muscle contractions, nerve impulses, energy metabolism and protein formation.

Editor's Notes

Written by johnny_miller | Staff
  • Our research indicates that this deal is $1.34 less (~29% savings) than the next best available price from a reputable merchant with prices starting from $4.49 at the time of this posting.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by pennysave

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Model: Nature's Bounty Magnesium Tablets - 500mg, 100 ct

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Sort: Lowest to Highest | Last Updated 2/27/2026, 06:08 PM
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Top Comments

Kouskous44
1664 Posts
437 Reputation
This is magnesium oxide, which helps wifh digestion.
DarrinH7785
575 Posts
156 Reputation
This is magnesium oxide which is the cheapest form of magnesiun and least absorbed, but it's good for constipation. Magnesium glycinate is a much better all around form of magnesium unless you desire the laxative effect.

20 Comments

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Feb 07, 2026 02:01 PM
979 Posts
Joined Oct 2010
roni2010Feb 07, 2026 02:01 PM
979 Posts
no coupon, but SS price is 3.82, still a good deal, I think?
Feb 07, 2026 02:08 PM
1,664 Posts
Joined Dec 2007
Kouskous44Feb 07, 2026 02:08 PM
1,664 Posts

Our community has rated this post as helpful. If you agree, why not thank Kouskous44

This is magnesium oxide, which helps wifh digestion.
4
Feb 07, 2026 03:10 PM
1,676 Posts
Joined Aug 2009
dcguy703Feb 07, 2026 03:10 PM
1,676 Posts

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Quote from Kouskous44 :
This is magnesium oxide, which helps wifh digestion.
Correct. Not sure why it's advertised as Bone and Muscle health
1
Feb 07, 2026 03:13 PM
4,610 Posts
Joined Jun 2004
i3igheadFeb 07, 2026 03:13 PM
4,610 Posts
Can this be used for making your own zma?

chatgpt said glycinate is better.
Feb 07, 2026 03:45 PM
42 Posts
Joined Sep 2024
PenniesOnFireFeb 07, 2026 03:45 PM
42 Posts
Quote from i3ighead :
Can this be used for making your own zma? chatgpt said glycinate is better.
If chatgpt said glycinate is better, then why can't you ask chatgpt how to make your own zma? You think you have better luck here?
2
Feb 07, 2026 04:58 PM
575 Posts
Joined Nov 2013
DarrinH7785Feb 07, 2026 04:58 PM
575 Posts

Our community has rated this post as helpful. If you agree, why not thank DarrinH7785

This is magnesium oxide which is the cheapest form of magnesiun and least absorbed, but it's good for constipation. Magnesium glycinate is a much better all around form of magnesium unless you desire the laxative effect.
1
Feb 07, 2026 05:46 PM
1,352 Posts
Joined Jan 2011
MrsFrizzleGaveMeLSDFeb 07, 2026 05:46 PM
1,352 Posts

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Quote from i3ighead :
Can this be used for making your own zma?

chatgpt said glycinate is better.
ZMA is a patented formulation made up of specific forms—specifically zinc monomethionine and magnesium aspartate. These minerals, bound to the amino acids methionine and aspartic acid, do a much better job in terms of bioavailability compared to magnesium oxide (found in this product) or zinc oxide. The aspartic acid is also involved in the krebs cycle to support ATP energy production, which is likely the specific reason Victor Conte (the developer) chose it.

The added B6 in ZMA further aids in enhancing mineral absorption (especially with magnesium), amino acid metabolism and nighttime recovery, as it acts as a precursor for neurotransmitters and sleep hormones. This is exactly why people report having wild dreams when taking ZMA. That being said, you can technically build a better version of ZMA using slightly superior forms of magnesium and zinc, such as Albion's TRAACS minerals, and pairing them with methylated B6 (P5P) for better absorption. I would avoid this particular Nature's Bounty product unless you're looking for the osmotic laxative effect that comes with magnesium oxide.
2

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Feb 07, 2026 06:22 PM
32 Posts
Joined Sep 2013
MaxBuzzFeb 07, 2026 06:22 PM
32 Posts
Magnesium oxide is worthless.
1
Feb 07, 2026 06:42 PM
546 Posts
Joined Aug 2011
Sturmgeist781Feb 07, 2026 06:42 PM
546 Posts
Quote from i3ighead :
Can this be used for making your own zma? chatgpt said glycinate is better.
Chatgpt said.....
Feb 07, 2026 07:38 PM
9 Posts
Joined Sep 2021
BeautifulSparrow417Feb 07, 2026 07:38 PM
9 Posts
Not the best form of magnesium
Feb 08, 2026 02:24 AM
187 Posts
Joined Jan 2011
hens21Feb 08, 2026 02:24 AM
187 Posts
Junk... very poor bioavailability
Feb 08, 2026 04:44 AM
809 Posts
Joined Nov 2011
mrSparkyFeb 08, 2026 04:44 AM
809 Posts
Quote from hens21 :
Junk... very poor bioavailability
Yes, tough to absorb. Magnesium oxide can make you feel sleepy or tired as a result of the laxative effect.

Citrate and glycinate are better forms.
Feb 08, 2026 05:17 AM
1,185 Posts
Joined Apr 2012
kozgFeb 08, 2026 05:17 AM
1,185 Posts
Anyone use magnesium for migraines with aura? I've seen Oxide mentioned in a few medical papers, but the bioavailability is low unless there is something else about this form? About to give glycinate a try
Feb 08, 2026 08:38 AM
25 Posts
Joined Nov 2016
e36andyFeb 08, 2026 08:38 AM
25 Posts
Quote from kozg :
Anyone use magnesium for migraines with aura? I've seen Oxide mentioned in a few medical papers, but the bioavailability is low unless there is something else about this form? About to give glycinate a try
Yes, Oxide is still the #1 prescribed by Neurologists. It's cheap and it works. Glycinate or L-Threonate may be better because they cross the blood brain barrier but Oxide is fine. Follow up with a Neurologist. If you get auras, you are at higher risk for strokes.
1

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Feb 08, 2026 08:41 AM
25 Posts
Joined Nov 2016
e36andyFeb 08, 2026 08:41 AM
25 Posts
I posted this last time there was a deal on magnesium... Oxide is still the #1 recommended by neurologists and has a lot of evidence behind it. If your goal is to prevent migraines or just as a general supplement it's fine. If you are taking Magnesium to help relax or go to sleep and elevate levels, Glycinate is better. If you are trying to elevate levels and find yourself constipated often use Citrate (upping your Fiber would probably be ideal though). The formulation you are buying should depend on what you are using it for.

For example, I get migraines so I just take oxide in the evenings and it also helps with acid reflux as it's a decent antacid. I kill 2 birds with 1 stone so to speak.
1

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