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Grand Flex
Grand Meadows — Item #10052
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Horse Journal's best glucosamine product pick

  • 5,000 mg of purified glucosamine HCl & 5,000 mg of vitamin C support healthy joints
  • Includes other antioxidants and chelated minerals
Grand Flex contains 5,000 mg purified glucosamine HCl and 5,000 mg vitamin C, plus other antioxidants and chelated minerals. Horse Journal pick for Best Glucosamine product!

View our Joint Supplement Comparison Chart

Click here to read more about Grand Flex


Active Ingredients per 1 oz:
(Maintenance Dose = 1 scoop (1 oz) daily)
  • Lysine
    200 mg
  • Methionine
    3,000 mg
  • Glucosamine HCL (shellfish source)
    5,000 mg
  • Vitamin C
    5,000 mg
  • Manganese
    250 mg
  • Zinc
    200 mg
  • Niacinamide
    150 mg
  • Citrus Bioflavonoids
    100 mg
  • Proline
    80 mg
  • Copper
    50 mg
Inactive Ingredients: : Flavoring, Maltodextrin


Instructions for Use:
Directions for Use:
Initial administration (for first 3-4 weeks)- 2 scoops daily
Maintenance- 1 scoop daily

Clinical Research

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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.

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    Grand Flex is rated 4.7 out of 5 by 27.
    Rated 5 out of 5 by from Good product! This is a good joint supplement and I think its really working. My "picky eater" doesn't like it as well - but my mare eats it without a problem.
    Date published: 2011-12-07
    Rated 5 out of 5 by from grand flex is great! i bought this because it was the most affordable even over smart supplements...i was skeptical when i received it because it had a bad odor but said it was apple flavored and my mare ate it up...she is 11 and has nevicular disease so i wasnt sure it would work but to my surprise it seems to have done way more than just help...she is happy and energetic so we can tell she feels much better and is in less pain
    Date published: 2011-10-06
    Rated 5 out of 5 by from grand flex I love this product. My mare loves it and it is so good for her joints as she is growing and training harder.
    Date published: 2011-10-06
    Rated 5 out of 5 by from Quick and amazing results! We started our 22 yr old horse on it about a month ago, and wow, we saw amazing changes in about 3 weeks. We thought the horse was perfectly fine, no health issues, no joint issues. But once the SmartPak kicked in, she was so much perkier and her mood improved. Now she acts like a young horse again, which, sometimes gets her in big trouble! I highly recommend this supplement! The only drawback is, that she does not like the taste of it, she kicks over her grain bucket trying to get rid of it, but after all she licks everything.
    Date published: 2011-08-06
    Rated 5 out of 5 by from
    Date published: 2011-05-17
    Rated 5 out of 5 by from SmartPaks are GREAT I am totally satisfied with my purchase of Grand FLEX. My Lusitano stallion LOVES it !
    Date published: 2011-02-22
    Rated 4 out of 5 by from Good but horses don't like taste This product works well but only if I add it to their feed which is hard for me since they are on full board and are fed by the barn. They did not like the taste and would only eat it if it were mixed in with their feed.
    Date published: 2011-02-18
    Rated 5 out of 5 by from Noticable results My 23 year-old TB gelding responded to this supplement within two weeks. He moves with notably increase comfort and ease.
    Date published: 2011-01-20
    Rated 4 out of 5 by from very effective, but... i gave grand flex to my 12 year old tb for a year now, its done wonders for his joints but makes him edgy while he is on grand flex he spooks at everything, i have found that smartflex matnience has the same effectiveness , but does not make my horse as hot.
    Date published: 2010-11-15
    Rated 5 out of 5 by from The Extra Mile Our horses are really enjoy the new spring in their step since we have started adding Grand Flex to thier daily routine. They jump, jog and even look better.
    Date published: 2010-04-07
    Rated 5 out of 5 by from
    Date published: 2009-12-28
    Rated 5 out of 5 by from
    Date published: 2009-11-12
    Rated 5 out of 5 by from Finicky TB likes it! I switched to Grand Flex from another (pelleted) supplement for the better price. I was worried about my finicky TB eating (or not) a powdered supplement, but if there's any left in the bottom of his bucket he licks it right up. It seems to be keeping him just as comfortable as the other one did.
    Date published: 2009-10-03
    Rated 5 out of 5 by from Use for My Chessie I use this product as a hip/joint supplement and it works great. I have had more success using this product than anything from the pet store.
    Date published: 2009-09-24
    Rated 5 out of 5 by from Excellent value for large dogs I have used this before and seen great results. I use Grand Flex as joint maintenance. If you own large heavy dogs this product is very cost effective.
    Date published: 2009-05-20
    Rated 3 out of 5 by from my horses don't like it It smells fishy...guessing it tastes fishy too because my guys don't want to touch it. I switched them to Smartflex Senior and they are eating that much better.
    Date published: 2009-05-15
    Rated 4 out of 5 by from Healthy for horse This product seems to help our horse, she has become for comfortable and healthier.
    Date published: 2009-05-06
    Rated 5 out of 5 by from
    Date published: 2009-05-03
    Rated 4 out of 5 by from My mare is more fluid on Grand Flex My 21-year old Hanovarian mare has been on Grand Flex for about 18 months. She is chronically very slightly lame from an old eventing injury, but improves with work. Her movement seems more fluid and comfortable since we started this supplement and I have every intention of keeping her on it. The product must be palatable as she eats her grain with as much relish as ever!
    Date published: 2009-04-22
    Rated 5 out of 5 by from STOP wasting time! Are you spending too much time looking for the right joint supplements? Well now you can spend that time with your horse! Grand Flex really, really works! My horse was stiff. She is a go go go kind of horse. I put her on it and I saw that she was not as stiff. Grand Flex really works!
    Date published: 2005-10-06
    Rated 5 out of 5 by from Quite Popular I have heard many wonderful stories about Grand Flex. A friend of mine has a 20-year-old pleasure driver Morgan who hadn't been able to be driven in 5 years. After 2 weeks of being on Grand Flex she could be worked regularly. I personally saw a nice improvement in my horse.
    Date published: 2005-06-13
    Rated 5 out of 5 by from Wonderful results! I give Grand Flex to my horse for maintenance purposes; recently after reading the side label and learning it can also be given to dogs, I thought I would give it a try on my 13 year old Min Pin. The results were AMAZING!! She is so much more active and frisky -- she seems a lot more comfortable. I have tried other products on her; however, the results with this product were wonderful!
    Date published: 2004-08-08
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