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SmartDigest® Ultra Powder
SmartSupplements by SmartPak — Item #16312
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Comprehensive hindgut support

  • Provides clinically studied ingredients, including prebiotics, probiotics, yeast, and enzymes
  • Order in SmartPaks & you may be eligible for $7,500 of colic surgery reimbursement through ColiCare
The clinically studied ingredients in SmartDigest Ultra include prebiotics shown to reduce disruption in the cecum and colon and to inhibit the absorption of harmful bacteria in the hindgut; yeast shown to improve fiber digestion and to assist the beneficial bacteria of the cecum in adjusting to feed changes; and enzymes demonstrated to increase the proper digestion of starch in the foregut.

SmartDigest Ultra provides unparalleled hindgut support for every horse, to help maintain digestive balance.

Order SmartDigest Ultra in SmartPaks and you may be eligible for up to $7,500 of colic surgery reimbursement through our ColiCare program!

Also available in PELLETS!

View our Digestion Supplement Comparison Chart


Active Ingredients per 30 g:
(Maintenance Dose = 1 scoop (30 g) daily)
  • Fructooligosaccharides
    1,250 mg
  • Mannanoligosaccharides
    1,050 mg
  • L-Glutamine
    1,000 mg
  • Kaolin
    1,000 mg
  • Arabinogalactan
    700 mg
  • Deglycyrrized Licorice
    500 mg
  • Psyllium Seed Husk
    450 mg
  • Fenugreek Seed
    400 mg
  • Oat Beta Glucan
    150 mg
  • Apple Fiber
    140 mg
  • Citrus Pectin
    50 mg
  • Active Dry Yeast (Saccharomyces cerevisiae)
    30 billion CFU
  • Lactobacillus Acidophilus
    22.5 billion CFU
  • Enterococcus Faecium
    1.5 billion CFU
  • Lactobacillus Casei
    1 billion CFU
  • Enterococcus Lactis
    1 billion CFU
  • Bifidobacterium Longum
    450 million CFU
  • Enzase-EQ® (a proprietary blend of Aspergillus Oryzae, Aspergillus Niger, Bacillus Subtilus and Pancrelipase, supplying Amylase, Protease, Lipase, Cellulase and Lactase enzymes)
    1,300 mg
Inactive Ingredients: : Brewers Dried Yeast, Corn Distillers Dried Grains with Solubles, Magnesium Silicate, Natural Flavors, Salt, Stabilized Rice Bran, Vegetable Oil (cold pressed).


Instructions for Use:
Horse Weight Recommended Amount
Under 500 lbs. 0.5 scoops
500 – 1000 lbs. 1 scoop
1000 – 1500 lbs. 1 scoop
Over 1500 lbs. 1.5 scoops
Directions for Use: Administer 30 g daily, 1 scoop = 30 g.


SmartDigest Ultra

Clinical Research

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    out of 5
    94% of customers would recommend this product to a friend!
    Tell us what you think!

    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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    SmartDigest® Ultra Powder is rated 4.6 out of 5 by 737.
    Rated 4 out of 5 by from Works great for my horses My young horse has always had a sensitive gut (colic surgery as a baby, and runny manure whenever changes in feed occur) but since starting him on this he can eat whatever he wants and his manure looks great. His older mom eats a lot better when she's on this as well. I split a scoop between the two of them on a daily basis but up to a full scoop if they've had a stressful day or there's a change in food.
    Date published: 2016-03-15
    Rated 5 out of 5 by from My horse has improved and had a speedy recovery since she started smartpak after a colic episode
    Date published: 2016-03-11
    Rated 5 out of 5 by from Great product I started my mare the ultra powder and I was worried because I read reviews that didn't make it seem promising but she his eating it just fine. It sticks to her high fat and I don't think she notices it in there.
    Date published: 2016-03-02
    Rated 5 out of 5 by from So Incredibly Happy with this Product I started using this product about 4 years ago, after I almost lost my horse to a horrific round of colic and colitis. I tried it because of the pre- and probiotics and because it supported her problem areas. Since I've started giving it to her 4 years ago, she has not had any diarrhea, nor has she had a flare up of colitis. Not even after changing boarding barns and hay/hay providers multiple times. Overall, SmartDigest Ultra is a great supplement, I will never take her off of it. The Colicare eligibility is very nice as well. It's comforting to have, though I hope I never have to ever use it.
    Date published: 2016-02-16
    Rated 5 out of 5 by from Wonderful results I added this supplement a month ago and have seen wonderful results with Max.
    Date published: 2016-02-15
    Rated 5 out of 5 by from
    Date published: 2016-02-10
    Rated 5 out of 5 by from So far so good My Elderly horse with Cushings was having awfully soft poop. After fec checks and pro biotics no change. Then turned to pure liquid after 2 was of trying smart gut he has normal poop and clean legs coat looks better I Can't be happier and best part he doesn't even notice it's in his feed.
    Date published: 2016-02-04
    Rated 5 out of 5 by from It Really Worked! My Horse was having messy stools and that icky brown liquid down his legs and I could not get it under control. My stable friend told me what she used and to be patient that it would take a little time. It has been 5 weeks and YEAH!!! A Clean Butt, finally no more daily trips to the wash rack just to clean a butt and back legs.
    Date published: 2016-02-03
    Rated 5 out of 5 by from Works well Since I started my horse on this product it took under 3 weeks to clear up an ongoing loose stool problem. It has worked wonders for my horse.
    Date published: 2016-01-20
    Rated 5 out of 5 by from super supplement I bought cool calories for my rescue horse and he has gained all his weight. He also had diarrhea and this ha been eliminated with Smart Digest. I can tell, he feels good and looks great.Outstanding customer service. They really care for your horse
    Date published: 2016-01-19
    Rated 5 out of 5 by from
    Date published: 2016-01-06
    Rated 4 out of 5 by from Good Suppliment I put my 3 year old into training so she was having a lot of changes to her environment and feed. I feel this helped her make the change and keeps her stomach even. Downfall is she is a picky eater and it took her a while to like this supplement. Now she eats it up.
    Date published: 2016-01-05
    Rated 5 out of 5 by from
    Date published: 2015-12-17
    Rated 2 out of 5 by from Picky eater wouldn't touch I only used 1 month cause my OTTB would not eat it. But she is the pickiest eater I have ever had!
    Date published: 2015-12-16
    Rated 5 out of 5 by from I'm so happy that I put Summer on the Smart Pack Just the peace of mind is worth it.
    Date published: 2015-12-15
    Rated 5 out of 5 by from Summer loves it. The peace of mind I get is well worth it.
    Date published: 2015-12-15
    Rated 5 out of 5 by from Works great!!! My paint gelding has always gotten loose stools in the winter when he is on hay only. I tried several other probiotic products with no success. Last winter I tried SmartDigest Ultra and it worked like a charm. He can be picky, but will even eat the powder without any grain. It kind of smells like maple syrup :) It is a bit expensive, but worth every penny. No more poopy butt in the winter!!!!
    Date published: 2015-12-02
    Rated 5 out of 5 by from I love the pre-measured packaging!!!! we put all three of our horses on SmartDigest Ultra Powder 6 weeks ago. I hope to never find out that it is NOT working!! I love the pre-measured packages and my horses love the taste.
    Date published: 2015-11-18
    Rated 4 out of 5 by from My mare that is using it is so touchy, can't even change hay fields on her. But, so far so good. We have only been using it a little over a month now.
    Date published: 2015-11-09
    Rated 4 out of 5 by from Rebuilt my filly after Doxycycline My Andalusian filly as a foal coliced and was sensitive to antibiotics. As a 2 year old, she contracted Lyme's disease and was placed on a low dosage of Doxycycline, cautiously. The first day she had loose stool, then throughout the duration of the antibiotic she was weak acting, continued a dull coat and looked nauseous for lack of a better explanation. After consulting with Smartpak personnel about halfway through the anti., they suggested the SmartDigest Ultra powder. They recommended the 3.7lb size for a fair amount to see a difference. She just finished the bucket. Her coat came around nicer than I have seen it and her gut sounds are good sounding. She is also 'in the present' acting again. She doesn't love the taste, but will ultimately eat it. Her stable mate, on the other hand LOVES the taste of it and waits to clean up any she may leave behind :) I am dialing this in as a barn staple going forward and will update my review if my thoughts change. I could use the colic insurance from using the premeasured packets (which are supposed to be cheaper than the loose buckets) but the reality is she doesn't always eat the whole dosage and I can give custom scoops to other horses, at will. It probably is not how the product is to be used, but it is my realty.
    Date published: 2015-11-08
    Rated 5 out of 5 by from Great product! Great product! Great for a picky eater too. Customer service was great also.
    Date published: 2015-10-13
    Rated 4 out of 5 by from Possibly too soon to tell on the benefits My two horses are boarded at a large facility where the hay is from one supplier but different consistencies with each monthly delivery. Neither have had issues with colic. One horse has constant watery stool that drips from behind in warm weather and the other can be anxious/antsy when hungry. Both are treated with omeprazole frequently. Wanted an all-around supplement to help aid digestion and hind gut health. They have been on this supplement for about 2 months so we may be too soon to see results. Horse with watery stool seems better but the weather is cooler now too. The other horse has seen no change yet. Both horses have no issues eating up the powder. Will continue feeding it for another few months and make a decision down the road on whether it is beneficial.
    Date published: 2015-10-13
    Rated 5 out of 5 by from I am very happy with this product. It has helped Levi's digestive issues a lot.
    Date published: 2015-10-05
    Rated 5 out of 5 by from Great Ulcer Prevention I've had my 7 year old OTTB on SmartDigest Ultra for 5 months after treating for ulcers. No gas, loose stools, or any symptoms since starting. It works great for sensitive tummies. She loves the taste so much she licks up any left over! Also like that it qualifies for Colicare!
    Date published: 2015-09-30
    Rated 5 out of 5 by from
    Date published: 2015-09-18
    Rated 5 out of 5 by from
    Date published: 2015-09-18
    Rated 4 out of 5 by from Really helped my horse My horse had a problem with chronic diarrhea and my vet suggested I try this out. It is the only product I have tried thus far where I have seen a significant change in his stool. I would definitely recommend giving it a try if your horse suffers with the same problem.
    Date published: 2015-09-15
    Rated 5 out of 5 by from Love this product Started my horse on this supplement over a year ago, and love it!
    Date published: 2015-09-02
    Rated 1 out of 5 by from Mare coliced after being on SmartPak Digest Ultra I'm so so sad right now to report that my mare, that has (other than a slight gas colic in July 2009 on a hot day with her foal by her side...) never coliced. I started her on SPDU as a precaution and loved the idea of the Colic Surgery protection. My mare has spend the last 3 days under emergency care with an IV and tube to administer fluids. She is just starting to show signs of a bit of relief. In addition to my mare's colic episode, my best friend, put her mare on SmartPak Digest Ultra (on my recommendation) and she just passed away from colic 3 weeks ago. I'm pulling my horse off SPDU and looking for a new supplement right away. I feel horrible that my poor girl has suffered so much despite spending hundreds of dollars on this supplement over the past 2 years. :(
    Date published: 2015-08-30
    Rated 4 out of 5 by from
    Date published: 2015-08-21
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