T o support any cellular repair in the body, we need protein, which is broken down into amino acids required for regeneration. And for a healthy gut membrane , two specific amino acids play a pivotal role in supporting the repair of this delicate tissue:

1. L Glutamine - a key building block for proteins that maintain cellular health and tissue repair. More importantly, it’s the preferred food of the cells lining the gut wall.
2. N-Acetyl L-Cysteine (NAC) : The precursor to glutathione, the body’s master antioxidant, NAC protects cells from damage caused by free radicals and supports cellular repair through enhanced glutathione production.

L-Glutamine and gut health
L-Glutamine plays a vital role in the regeneration of epithelial cells in the GI mucosa lining, particularly during times of critical illness, trauma, intestinal disease, or after excessive loss of lean body mass. L-Glutamine is so important to gut health that low concentrations are linked to gut permeability and inflammation making it a crucial nutrient for resolving leaky gut.

As the preferred fuel for the cells lining the gut wall, L-Glutamine supports their repair and regeneration. This helps restore the intestinal lining’s integrity, maintain the right pH balance, and eliminate the challenges of leaky gut. Research in human health suggests that glutamine supplementation begins showing effects within 30 days, with significant gut lining repair typically achieved in around 12 weeks.

L-Glutamine works synergistically with NAC to enhance glutathione production, further supporting cellular health and protection.

NAC and glutathione
N-Acetyl L-Cysteine is a vital precursor to glutathione, the body’s most powerful natural antioxidant. By replenishing glutathione levels, NAC helps protect cells from oxidative stress and supports overall cellular repair.

Complementary support from marshmallow root
To enhance the benefits of L-Glutamine and NAC, GutAminos also includes Marshmallow Root , used as a remedy for centuries to treat digestive conditions. It actively promotes the growth of intestinal cells with research showing promise in its antioxidant properties and gastroprotective effects, particularly for ulcers. Marshmallow Root actively promotes the growth of intestinal cells, supporting the repair of leaky gut and strengthening the gut lining.

For the latest research and updates, see our main A-Z Condition/Gut System page in the Advice Centre above.

Composition: Pure N-Acetyl L-Cysteine (NAC), L-Glutamine, & Marshmallow Root

Feed: 3g/100kg bodyweight per day, i.e. 15g for a 500kg horse.

• 1 level 15ml scoop = 15-grams.
• Human grade.
• Amino acids manufactured to ISO, BP, USP & EP requirements and/or food grade specifications.

Feed GutAminos alongside both SiboCARE and UlsaTonic to support the intestinal and stomach mucosal membrane.

GutAminos is continually endorsed by horse owners for its ability to support gut health, aid recovery from stressors like antibiotics, and improve overall wellbeing. Clients report transformative results in horses with gut sensitivities, hindgut disruptions, and ulcer-prone conditions.

• Rapid improvement: Many horses showed visible improvements within days, with better posture, energy levels, and overall comfort.
• Recovery support: Effective in helping horses recover from gut disruptions caused by antibiotics or stress.
• Behavioural and physical changes: Owners noted calmer demeanours, improved performance under saddle, and enhanced gut health.
• Ulcer management: Proven to help manage ulcer-prone horses, reducing the need for pharmaceutical treatments.

24.3.23- Just wanted to big up your Gut Aminos which once again have saved the day for us. My mare decided to pick a fight with a gate a few weeks ago while feeling in season and feisty (a pesky boy was the other side!) resulting in box rest and insistence from the vet for antibiotics (wound very close proximity to her hock joint). This is a mare with a mega sensitive gut who’s also unfortunately accident prone, and I had got her totally sorted and stable a few months prior to this so was devastated to put her on antibiotics as I knew what the result would be, I hopefully pumped as much good stuff in as I could and crossed my fingers. A few weeks after finishing the antibiotics and tell tale signs began to show of right flank sensitivity and some pretty acrobatic displays in the school along with a generally sad and withdrawn demeanour creeping in. I ordered your Gut Aminos which I’ve used to help her with convalescence before and 2 days on the sensitivity is much reduced and she’s back to being happy and friendly. Thanks so much! Scarlett and Cilla

2.3.23- GutAminos & DuoBute Loving the results I am getting with using your products. Thought I was going to have to PTS but she’s bounced back! Bernadette

2.2.23- SIBO-CARE & GutAminos Hex is doing very well on sibo care and gut aminos Like a different horse Feels bright and not kicking out when saddle goes on , Obviously feeling much better , I feel his stride is longer using his hind legs more easily, Many thanks so pleased he is brighter and more comfortable, Best wishes, Felicity

24.2.22 - SIBO-CARE, GutAminos & P5P I just ... I dont know what to say, I mean maybe you think I’m a crazy Swede LOL … I think I was hallucinating because after the first morning dose, in the afternoon she already in her eyes and body language looked "better". Her posture was upright, and yesterday afternoon, day 2, she ran like crazy and rolled on the ground and was strong with energy! Today, day 3, she stretched her body (hasn’t done that for a long time) and ate her steamed hay with a good appetite and not just picking through it.The first night my husband said, “Look at her poop! It’s better.” I thought it was maybe just a lucky one, but day 2’s poop is already 50% better in colour and shape. Gas, absolutely better already.C´mon. For real?! LOL … Is it even possible? I know you said you couldn’t promise me anything, but this is too good to be true. I cried this morning because if this is true, then I can already see the light and the hope for this girl and our future. Thank you so much! Janet & Lilly, Sweden

17.2.22- Gut Amino’s & UlsaTonic I am very pleased to report that my happy horse is back again! I really didn’t think it possible. I do very much appreciate your help and advice. Rachel & Teddy

5.2.22- Foal with major hindgut disruption - Gut Amino’s/P5P/Wildfed Powered by you! So so happy with this boy and the way he has turned around in such a short space of time. Zoe & Diego

17.10.21- Gut Amino’s & UlsaTonic I just wanted to let you know how Elsa was now she is back on UlsaTonic and GutAminos. She went from being unrideable in trot or canter to being able to school in walk, trot and canter after two days. I was amazed how much better she was. Abi B.

26.1.20- I've had my ulcer prone mare on GutAminos since November and I'm over the moon with results. I thought I was going to have to go down the Omeprazole route again but came across your product while researching natural ways to manage equine ulcers. Carol M.