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Putting your horse's supplements on AutoShip helps you take great care of your horse, so we take great care of you with SmartPerks! When you order your horse's supplements on AutoShip, you're automatically* eligible for our FREE SmartPerks benefits, including:
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Maintenance dose

Choose AutoShip to become eligible to apply for the FREE Colicare Program after checkout.

ColiCare is a FREE veterinarian-directed wellness program that provides enrolled horses with up to $7,500 of colic surgery reimbursement.

How Does it Work?

  1. Order any ColiCare Eligible Product in SmartPaks
  2. Fill out the quick application online- no paperwork required!
  3. Complete the Annual Wellness Requirements every year:
  • Physical exam performed by your vet
  • Dental exam performed by your vet
  • Vaccinations administered by your vet
  • Deworming program developed with your vet that includes at least one fecal test and two deworming administrations per year

Provided you meet the requirements above, if your horse undergoes any type of colic surgery, you'll be eligible for up to $7,500 of reimbursement.

Learn More »
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
  • SmartPak Pouches are currently only available for horses receiving one daily dose supplement, but the horse you've selected is already receiving other daily dose supplements. Please select "SmartPak Strips" to add this supplement to your horse's current order or enter a different horse name.
Please call 1-800-461-8898 to order this product.
New ship same day!
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Sign in to choose an existing
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
  • SmartPak Pouches are currently only available for horses receiving one daily dose supplement, but the horse you've selected is already receiving other daily dose supplements. Please select "SmartPak Strips" to add this supplement to your horse's current order or enter a different horse name.
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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.
( Cups / Meal)
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Maintenance dose

You're eligible to apply for our FREE ColiCare Program after checkout.

ColiCare is a FREE veterinarian-directed wellness program that provides enrolled horses with up to $7,500 of colic surgery reimbursement.

How Does it Work?

  1. Order any ColiCare Eligible Product in SmartPaks
  2. Fill out the quick application online- no paperwork required!
  3. Complete the Annual Wellness Requirements every year:
  • Physical exam performed by your vet
  • Dental exam performed by your vet
  • Vaccinations administered by your vet
  • Deworming program developed with your vet that includes at least one fecal test and two deworming administrations per year

Provided you meet the requirements above, if your horse undergoes any type of colic surgery, you'll be eligible for up to $7,500 of reimbursement.

Learn More »
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
  • SmartPak Pouches are currently only available for horses receiving one daily dose supplement, but the horse you've selected is already receiving other daily dose supplements. Please select "SmartPak Strips" to add this supplement to your horse's current order or enter a different horse name.
Please call 1-800-461-8898 to order this product.
New ship same day!
These are for:
Sign in to choose an existing
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
  • SmartPak Pouches are currently only available for horses receiving one daily dose supplement, but the horse you've selected is already receiving other daily dose supplements. Please select "SmartPak Strips" to add this supplement to your horse's current order or enter a different horse name.
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+
Order within and
have it by
Shipping to
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Supports a healthy nervous system & muscles

  • Provides 5,000 mg of magnesium
This formula provides 5,000 mg of magnesium in tasty pellets that horses love!

100% Happiness
Guarantee
HappinessGuarantee
At SmartPak, your happiness is at the core of everything we do. We back every order with our 100% Happiness Guarantee so that you can shop with confidence. If you're ever less than thrilled with your purchase, just let us know and we'll refund you right away. No hassles, no hoops, no kidding.

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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.

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Ingredients

(Maintenance Dose = )
Ingredient Per Serving Per Pound
How the Ingredients Work
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Instructions

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Instructions for Use:
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    Reviews

    Magnesium 5,000 is rated 4.7 out of 5 by 266.
    Rated 5 out of 5 by from Great value My typically calm OTTB started to show some signs of stress and nervousness. I started him on this and I've seen a huge improvement- he's back to his calm, cool, collected self. Great value.
    Date published: 2019-05-22
    Rated 5 out of 5 by from My experienced endurance horse had been getting very difficult to handle the last couple of months-bucking, running through the bit, bolting. On a hunch I started her on a double dose of magnesium 10 days ago. For our ride today she was back to normal-14 miles alone trotting and cantering on a loose rein with only a single little spook in place. Magnesium won't fix crazy if a deficiency isn't the underlying problem, but this is an easy and effective diagnostic and solution.
    Date published: 2019-03-20
    Rated 5 out of 5 by from Great I started using these two months ago. They are very easy and my horse loves them.
    Date published: 2019-02-28
    Rated 4 out of 5 by from Worked great My mare has been on their for a little over a month, my hopes was to help even out her excitability. She happily eats this supplement and it seems to be leveling out her reactions as well :)
    Date published: 2018-12-22
    Rated 5 out of 5 by from My horse has been on this for over a month and I definitely see a difference in her behavior,much calmer and more focused which makes a much nicer show horse
    Date published: 2018-11-17
    Rated 5 out of 5 by from Amazing Product I bought this last month as my horse has muscle spasms due to a magnesium deficiency. Not only has the spasms decreased, but she is more comfortable when exercising!
    Date published: 2018-11-14
    Rated 5 out of 5 by from Reasonable priced magnesium supplement I've been feeding this almost two months and see a slightly more focused horse than before. I had hoped for a more significant improvement with spooking and being distracted. Will give this product another month or two before I pass judgement.
    Date published: 2018-10-25
    Rated 5 out of 5 by from Great results I bought this for a gelding who tends to get alittle tense and upset if he feels like he's done wrong, and this season of showing he has just been a different horse. More relaxed, doesn't get as flustered. It's been a huge difference.
    Date published: 2018-09-20
    Rated 5 out of 5 by from Best magnesium supplement Very palatable pellet, good with picky eaters. I love the fact that you can easily double the dose safely for performance horses and it doesn't have other things in it that I don't need.
    Date published: 2018-09-18
    Rated 3 out of 5 by from It may help a little bit I bought this about 5 weeks ago for my 20 year old gelding who was acting quite studdish. I wanted to keep him calmer in general so he could gain more weight. I see a bit of a difference in his handling on the ground, and he is the same willing horse under saddle. Not a drastic change, but he’s better than before.
    Date published: 2018-08-01
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