

🦄 Elevate your horse’s gut game — because champions start from within!
NAF Five Star GastriAid is a 1.8kg advanced gut health supplement for horses, combining prebiotics, probiotics, and postbiotics in a triple action formula. Designed to support stable digestion, improve nutrient absorption, and promote overall wellbeing, it’s trusted by equine professionals and ideal for horses under stress or training. This unflavoured powder integrates seamlessly with all feeds to help maintain vitality, weight, and a glossy coat.






| ASIN | B0069RGBA6 |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 3,502 in Pet Supplies ( See Top 100 in Pet Supplies ) 2 in Horse Food |
| Breed Recommendation | Small Breeds |
| Colour | Transparent |
| Customer Reviews | 4.7 4.7 out of 5 stars (67) |
| Date First Available | 18 Nov. 2011 |
| Flavor | Unflavoured |
| Item Form | Powder |
| Item Weight | 1.8 kg |
| Item model number | G196.1800 |
| Material Composition | 100% Cotton |
| Number of Items | 1 |
| Outer Material | Cotton |
| Pet Life Stage | Adult |
| Pet Type | Horse |
| Product Dimensions | 40 x 15 x 60 cm; 1.8 kg |
| Quantity | 1 |
| Size | 1.8 kg (Pack of 1) |
| Special features | Triple Action Formula with Prebiotics, Probiotics, and Postbiotics |
| Specific Uses | Digestive Health |
| Storage Information | Keep dry. |
Z**O
Perfect for my oldie
Perfect for my boy. He’s now been on it well over a year and I do believe it keeps tummy problems at bay. Knowing my boy, I could see the results within only a few weeks of starting it and I have never taken him off it. He's an older pony with a history of colic and crib bitting (who knows what problems that could have caused) but since he’s been on this, he seems a lot happier 😊 would highly recommend.
C**A
Palatable
Not sure yet if it works, but he's eating it, and he's mega fussy!
A**R
The best support out there!
This stuff is the best out there. My horse has recovered from grade 4 ulcers and we needed something to support his gut. We have tried a few expensive brands that have had a real negative effect on him. Back to this one and he’s my happy horse again. Highly recommend it and wouldn’t use anything else now.
A**W
Works well for our horses
works very well for our horses
A**N
5* product
Helped my horses gut, he ate it without any problem, would recommend.
A**R
great product
helped with my horse
A**R
Keeps my horse well
I use a lot of NAF products but this one is a serious life changer for my horse. He had a bad fall in the field which left him with an area on side (not under) of belly that would fill with fluid and vets decided it was lymphatic system issues. He would struggle with coarse hay/chaffs and would look uncomfortable. NAF suggested this, although we had used it successfully with another horse for ulcers, as it would work along the digestive track to sooth. Horse is now very comfortable and we dont panic if we have to make a change in haylage/hay supply!
D**0
Helps my veteran horse digest his food
Had a few bouts of colic with my old horse and this seems to help him and means less discomfort for him less call-outs by the vet.
Trustpilot
2 weeks ago
1 week ago