Skip to content
PLEASE NOTE: You may experience errors on our site when using Internet Explorer. Please consider updating your browser, or download Google Chrome.

Smart & Simple® Magnesium

From: Price: $ $ $ $ $ $ $ $ $ $/day $/day $ $ $ $/day Member Price
(AutoShip discount will be reflected in your cart)
Packaging Options:
Shipping Frequency: AutoShips every 28 days (details) AutoShips every  days (details) One-time Ship
You'll love our AutoShip because it's:
  • Focused on healthy s, because consistency is key
  • Easy to snooze or cancel online, anytime
  • Totally flexible - edit your order as often as you'd like
  • Your VIP pass to FREE SmartPerks benefits
PLUS! You'll save % on every shipment if you order this product on AutoShip PLUS! You'll save % on every shipment if you order this product on AutoShip
The frequency you selected is not eligible for SmartPerks benefits that come with AutoShip supplement orders. In order to get benefits like free shipping and 10% off, set this product to ship at least every days. What are SmartPerks?
These are for:
    Cups:    ( Cups / Meal)
Change Dose
Feeding Chart

Daily Serving

Dog Weight - lbs Inactive Dog Active Dog Working Dog
Inactive Dog - Less than 30 minutes of vigorous exercise daily
Active Dog - At least 30 minutes of vigorous exercise daily
Working Dog - More than two hours of vigorous exercise daily
This is only a guide. Please consult your veterinarian to determine the perfect feeding amount for your dog.
Only SmartPaks on AutoShip make you eligible to apply for the FREE ColiCare Program. Colicare is a free program that provides up to $15,000 in colic surgery reimbursement
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
Please call 1-800-461-8898 to order this product.
Only SmartPaks on AutoShip make you eligible to apply for the FREE ColiCare Program. Colicare is a free program that provides up to $15,000 in colic surgery reimbursement
Colicare Eligible
Great Choice! You'll be eligible to apply for our FREE ColiCare Program, that provides up to $15,000 in colic surgery reimbursement, after checkout.
New ship same day!
Order within and have it by Shipping to
Add these items to your cart to get your estimated arrival date. Shipping to
Lowest Price Guaranteed
We're bringing you this product at the lowest price allowed by the manufacturer so you won't find it cheaper anywhere else. This also means we can't apply any further discounts or promotions.
We're sorry this item is currently out of stock. Our team is working to get it back in stock asap.

Product Overview

Supports proper nervous system, metabolic & muscle function

Smart & Simple Magnesium (formerly Magnesium Oxide by Uckele) provides 5,000 mg of magnesium, a macromineral that plays key roles in muscle contraction, nerve signaling, and metabolic function. A common area of deficiency in horses, insufficient magnesium may lead to signs of nervousness, excitement, or muscle tremors. Supplementing magnesium supports healthy muscles, normal glucose metabolism and insulin sensitivity, as well as proper nervous system function to help promote relaxation and a calm demeanor.  
  • Provides 5,000 mg of magnesium oxide per serving
  • Helps support a calm demeanor, healthy muscles and metabolic function

Learn More

Product Image

Key Ingredients


Supplement Facts

Ingredient Name Amount Per Serving
Ingredient Name Amount Per Pound

Ingredient Details


Weight Recommended Amount Loading Amount

How the Ingredients Work


Supporting Success

Supercharge Your Supplements

  • Simplify with SmartPaks | Consistent, Custom, Convenient
    Simplify your life with SmartPaks: custom-made, pre-measured daily doses of your horse's supplements.


The reviews provided on this website represent the experience of the individual posting the review. We do not adopt, edit, or endorse any of the submissions posted within the reviews section. Rather, the reviews are part of an online community of animal owners that desire to share their particular experience with other individuals. These reviews are not a substitute for discussing the health of your animal with a veterinarian.

SmartPak customers are some of the most conscientious animal owners around. We encourage you to share your experience with the products we sell to help fellow customers to make informed choices for their animals. We do not edit these reviews in any way - they are direct customer-to-customer communication. We do monitor reviews for positive and negative feedback, and use this feedback to improve our selection as well as sharing feedback with product manufacturers to help them improve their products. Please note that we recommend consulting your vet with serious health issues.

Smart & Simple® Magnesium is rated 4.8 out of 5 by 62.
Rated 5 out of 5 by from This great product , very This great product , very reasonably priced and easy to feed
Date published: 2021-11-12
Rated 5 out of 5 by from I really like the magnesium I really like the magnesium supplement. The horses seem to like it better than the other brand I was using.
Date published: 2021-08-29
Rated 5 out of 5 by from Good product Easy to administer the desired amount for horse's dietary needs.
Date published: 2021-08-24
Rated 4 out of 5 by from There is plenty to scoop There is plenty to scoop in this bag for my horses. I have noticed improved overall body condition.
Date published: 2021-07-28
Rated 5 out of 5 by from Great product at fair price Great product at fair price with very quick shipping! Have always been happy with any of your products and fast delivery!
Date published: 2021-04-19
Rated 5 out of 5 by from Affordable and palatable My horse eats it with no issues (fed in soaked hay pellets/beet pulp) and it is very affordable. Can't speak to results other than that my horse has been performing great in general. Feeding due to magnesium deficiency in hay.
Date published: 2021-03-01
Rated 5 out of 5 by from Great product, good price Great price for magnesium, and they are super fast to ship. The magnesium oxide is a great way to add magnesium to your horses died without a huge expense. The size of this container will last you quite a while.
Date published: 2021-01-26
Rated 5 out of 5 by from Good Product Very economical, which is nice considering the high amount of magnesium a lot of horse owners need to feed to balance out their hay, and my horses eat it no problem. It doesn't have a strange taste or smell and blends right in with whatever I mix it with. The containers and bags are always filled to the brim and the shipping is always fast.
Date published: 2021-01-09
Rated 5 out of 5 by from Was the best value per Was the best value per serving of magnesium oxide I could find.
Date published: 2020-12-23
Rated 4 out of 5 by from Magnesium Oxide The product is very good and purchasing it was very easy. It arrived quickly and in good shape.
Date published: 2020-10-24
Rated 5 out of 5 by from Great product with reliable quality Great product with reliable quality ingredients. This is my only choice for Mg oxide - simply the best.
Date published: 2020-09-30
Rated 5 out of 5 by from Great product at a reasonable Great product at a reasonable price! If you are having issues with hoof quality or nervousness/anxiety in your horse, give this a try. It works!!!
Date published: 2020-09-29
Rated 5 out of 5 by from Works great! Works as good as the expensive Mg supplements for muscle stiffness!
Date published: 2020-09-26
Rated 5 out of 5 by from So far the product is So far the product is good. Will know more in a few months. Packaged like all products from this company. Horses are all eating it.
Date published: 2020-09-14
Rated 5 out of 5 by from MagOx So far so good. My mare and donks seem more settled and relaxed, plus coats seem shinier than previously.
Date published: 2020-08-14
Rated 5 out of 5 by from I have seen results in I have seen results in both my horses. One was less tense and the other had better focus. I have fed 1/2 the amount 2 times a day instead of a full scoop once, that way they eat it all. Neither get a lot of grain.
Date published: 2020-07-25
Rated 4 out of 5 by from An important little scoop to our day! Pleased with the performance of this magnesium supplement and enjoy the economical price as we have quite a few horses using it daily.
Date published: 2020-07-11
Rated 5 out of 5 by from Easy and cheap! The horses eat this just fine, and can't beat the price!
Date published: 2020-06-24
Rated 5 out of 5 by from Excellent customer service Just received my first order so hard to know its impact on my horse. Was recommended by my barn manager. But the people at Uckele have been great to deal with so I give customer service an A+.
Date published: 2020-06-04
Rated 5 out of 5 by from Easy to Feed Easy to feed form of Magnesium Oxide at a reasonable price from a high quality company.
Date published: 2020-06-02
Rated 5 out of 5 by from Great tempermant changes My horse is much less anxious and enjoys his work more.
Date published: 2020-06-01
Rated 5 out of 5 by from Quick delivery The product came quickly, no issue. I use it to boost digestion for two chubby horses. (Borderline metabolic)
Date published: 2020-05-31
Rated 5 out of 5 by from Magnesium supplement Been using for about four years. Always consistent product, easy ordering and fast delivery.
Date published: 2020-05-02
Rated 5 out of 5 by from Great! Started doing some reading about the benefits of a magnesium supplement and After a lot of reading decided to try the uckele magnesium with my mare who is naturally very athletic, hot, and always been a bit spooky. Huge improvement after a week of being on this. She is much calmer, more relaxed and focused but still the mover she has always been. I notice she also is not as sore or tight the next day. Will absolutely keep purchasing this and will be trying it on my other mare.
Date published: 2020-03-30
Rated 5 out of 5 by from Quick shipping Great Product! This has been great for my senior Minis! And I couldn't believe how fast I got my order! Thanks
Date published: 2020-03-17
Rated 5 out of 5 by from No longer a head shaker! I have a 6yo homebred TB who developed headshaking syndrome June 2019. He could not be ridden. Since starting him on Uckele Magnesium Oxide, he is back in work and doing great! So pleased!
Date published: 2020-02-07
Rated 5 out of 5 by from Ex studs and star temperament My 14 year old gelding was a 12 year old Paso Fino stud when given to me. Very high strung, couldn't listen, reacted to every little occurrence. The Ukele magnesium has worked wonders on him. He isn't perfect yet and not likely ever to be, but he is safer to be around and a lot more fun!
Date published: 2019-11-24
Rated 5 out of 5 by from Referred product I was referred this product from my ferrier. So far so good. All seems to help my horse be calm too on top of being a beneficial nutrient. Good price for the price, very affordable. Decent timing on shipment. Will definitely purchase again.
Date published: 2019-09-26
Rated 5 out of 5 by from Love it Exactly what I needed. My horse refused his magnesium that he has to take so this can be mixed in his home made cookies without him knowing.
Date published: 2019-09-03
Rated 4 out of 5 by from Best bang for your buck! My mares both present some signs of being magnesium deficient and have been searching for a reasonable product to try. This is the BEST bang for your buck if magnesium needs to be added and you don't have many options in a rural town. Shipping was fast, small scoop size to hide it from my picky eater! No complaints!
Date published: 2019-08-30
  • y_2023, m_11, d_29, h_8
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.37
  • cp_2, bvpage2n
  • co_hasreviews, tv_11, tr_51
  • loc_en_US, sid_25963, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_smartpak
  • bvseo_sdk, net_sdk,
  • CLOUD, getContent, 78ms


Recently Viewed View all

Qualifying Items

Qualifying items are eligible for free shipping, every day. Look for the badge below on the product page to confirm that your item ships free!
Free Shipping

Ride Along Items

Ride Along items are eligible for free shipping when shipped with your next AutoShip order or any qualifying item. Look for the badge below to identify a Ride Along item.
Ride Along Item Ships free with a qualifying item.