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Mega Grand Flex

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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 $10,000 of colic surgery reimbursement.

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Please call 1-800-461-8898 to order this product.
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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 $10,000 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 $10,000 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
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Aggressive support for hardworking joints

  • The important co-factors in original Grand Flex, plus 12,500 mg of glucosamine & 10,000 mg of MSM
Mega Grand Flex is designed to help horses that have not responded to traditional ingredient levels in joint support products. Grand Meadows recommends that you use Mega Grand Flex when a more aggressive approach is needed. Mega Grand Flex contains all the important co-factors in original Grand Flex, plus 12,500 mg of glucosamine and 10,000 mg of MSM per serving.

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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:
Horse Weight Recommended Amount Loading Amount

Clinical Research

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    Reviews

    Mega Grand Flex is rated 4.7 out of 5 by 18.
    Rated 5 out of 5 by from Great! I bought this about a month ago for my retired barrel horse that has severe arthritis from an injury. I have seen a huge change in her comfort level. Sometimes she can be a picky eater but the taste doesn’t seem to bother her. I will continue to feed this.
    Date published: 2018-08-30
    Rated 5 out of 5 by from Great Product I bought this about 1 month ago. Our horse eats it with her grain each evening. We chose this product because it is a powder and had the ingredients we were looking for. Our horse is HYPP and we check the all the ingredients in any supplement we are considering to use. Smartpak's comparison charts are very helpful!
    Date published: 2015-06-08
    Rated 4 out of 5 by from Great product for the price! I have only been using this product for a little over a month can't really tell a big difference yet.
    Date published: 2014-10-04
    Rated 5 out of 5 by from Delivers as promised I was looking for a high level supplement without a lot of extra ingredients. My horse likes the taste, and he has responded favorably with diminishing lameness.
    Date published: 2013-05-23
    Rated 5 out of 5 by from great price for all you get It has everything I need in joint supplement and the price is right, especially if you have multiple horses. I've only been using for product for a few weeks so I can judge its efficacy. I'll need to give it a few months. My horses eat it, so that's important and it requires only a once a day dose.
    Date published: 2013-05-18
    Rated 4 out of 5 by from First Day First day with this product. I'm trying it because of all the good reviews. Sadly my picky picky picky mini does not like the taste . I'll have to figure out a way to make it tastier to her. I will update !
    Date published: 2013-04-10
    Rated 4 out of 5 by from great product My chiroprator suggested I use this product for my 9 year old thorobred, it has all the daily amounts needed to help maintain his joints and keep him pain free.
    Date published: 2011-09-22
    Rated 5 out of 5 by from Really makes a difference I have used this product for the past 8 months and it has really made a significant difference in my horse's mobility. I do mix it with beet pulp as she will not take it any other way.
    Date published: 2011-08-04
    Rated 5 out of 5 by from Just wonderful My horse has a bit of arthritis in his front ankle. After just 2 weeks with Mega Grand Flex I noticed he was feeling much better and not as stiff when I rode. This is the first supplement I have found that I really could see the results. My horse now has a spring in his step and ready to roll!
    Date published: 2010-09-15
    Rated 5 out of 5 by from Best Value! This product has the most glucosamine and MSM you will find for the price. My horse even after two weeks is moving better and feeling better. Great purchase!
    Date published: 2010-04-30
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