Sustain Supplement for Large Breed Dogs - 30 Sachets
Sustain Supplement for Large Breed Dogs - 30 Sachets
Couldn't load pickup availability
- Fully secure checkout
- Trusted by thousands
- Rated and reviewed
Shop safely
Secure your shopping experience with various safe and trusted payment methods.
Sustain Supplement for Large Breed Dogs is the first product to combine the benefits of two authorised probiotics to help support a healthy digestive and immune system. A dog’s intestines are home to trillions of microbes, mostly bacteria, that are known as the gut microbiota. These healthy bacteria help to fight against potential
KEY BENEFITS :
- Digestive Health: Probiotics help support a healthy population of good bacteria in the gut
- Immune Support: Supports the entire immune system of your dog
- Environmental/Dietary Changes: These can be associated with disruptions to the healthy intestinal balance
Suitable for: Dogs weighing 20kg and over
Contents: 30 sachets

Shopping Safely
At Petplanet.co.uk, we prioritise your safety and security. Here's how we ensure a secure shopping experience:
1. Secure Transactions: We use advanced encryption to protect your personal and payment information, ensuring it is safely transmitted and safeguarded.
2. Trusted Payment Gateways: Our store integrates with trusted payment gateways, ensuring your transactions are processed securely and efficiently.
3. Data Privacy: Your privacy is our top priority. We follow strict data protection policies to keep your personal information confidential and secure.
4. Secure Platform: Our platform provides robust security features and continuous monitoring against vulnerabilities, ensuring a safe shopping environment.
5. Verified Merchants: We are a verified merchant on Shopify, committed to providing authentic and high-quality products.
6. Transparent Policies: Our clear return, refund, and shipping policies provide peace of mind, knowing we stand behind our products.
7. Customer Support: Our dedicated customer support team is ready to assist with any concerns or questions you may have.
Shop confidently at Petplanet.co.uk, where your safety and satisfaction are our top priorities.
£36.98 GBP
Got sustain due get recommendation for sensitive tummy, works great tummy settling
Sustain powders have helped my dog’s sensitive stomach problems.
She won’t eat this just sprinkled on her food so I mix it with peanut butter and she wolfs it down. Only been taking a week so hopefully will see effects soon.
Keeps my dogs gut healthy
More than one of the sachets had spilled the powder contents into the box. At a price of more that £1 per sachets I would expect better packaging. This complaint lies with Sustain, not the seller.
- 5 stars: 16 (84%)
- 4 stars: 2 (11%)
- 3 stars: 1 (5%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
I've ordered from Petplanet uk a few times and as always, fast reliable delivery, thank you so much!
About sustain this probiotic powder is a must for dogs with allergies and leaky gut syndrome especially Shar Pei.
Sustain probiotic is made from pork liver and NOT from poultry like many other brands which cause allergic reactions themselves.
I've learned this the hard way when I switched from Sustain to Purina Fortiflora because it was unavailable at the time of ordering. My boy's ears became inflamed within a week, a clear sign of an allergic reaction to chicken.
I've switched back to Sustain and Bailey is now a healthy boy again. This probiotic powder is the best I came across.
A bit to early to tell as first box, got on recommendation from vets to work from within for my dogs allergies keeping all fingers crossed for it to work, I will repeat order to give it chance
Got sustain due get recommendation for sensitive tummy, works great tummy settling
Sustain powders have helped my dog’s sensitive stomach problems.
She won’t eat this just sprinkled on her food so I mix it with peanut butter and she wolfs it down. Only been taking a week so hopefully will see effects soon.
Keeps my dogs gut healthy
More than one of the sachets had spilled the powder contents into the box. At a price of more that £1 per sachets I would expect better packaging. This complaint lies with Sustain, not the seller.
This is great stuff. It worked in about 3 days for my dog. On the vet's advice I split his meals up so he ate 6 small meals a day with the powders on one of them, mixed into his wet food.
I've been using this product for my labrador since October 2025 after having severe stomach problems. It settled her stomach within a week of taking. I've now got my dog down to one every other day and this seems to keep her on a even keel. It's stopped the diarrhoea and sickness. Highly recommend.
Great stuff my old dog was struggling with runs for a while and lethargic this has solved all her prblems
Our older dog has been on this for many years. She’s takes 1 sachet mixed with her lunch and evening meal with no problem. She has “ colitis” or at least bowel intolerance and can only have royal Canin hypoallergenic wet and dry food. She used to have extreme bloody diarrhoea a few times a day. Since she has been on this she has only very rare occurrences and usually only if she has stolen some food she is allergic to. This really has ‘saved the day’
My mother's vet recommended it to her Labrador, and I stole the information for mine. I have a puppy who often eats things off the floor and these sachets help keep him healthy. Plus his ears and fur reflect a healthy gut! I give it in cycles throughout the year and am very satisfied.
My dog has been taking this for three months then I ordered two from PETPLANET - excellent price and speed of delivery but on a usage level - I�m sure it�s doing what it�s designed to do but I thought by giving him extra gut support that it might have had an impact on his breath - his teeth and gums are in excellent health and I have already had them cleaned by the vet to ensure this I will continue with this as it has been recommended by my vet anyway.
As I�ve said above it�s great. Sprinkled on her food and stirred in she eats it without any bother so it�s obviously very palatable.
My dog has been on this probiotic for the past 8 months or so and I usually get it from my vets. I saw that PetPlanet carried the same product and it was about �5 cheaper than my vets. So I was very pleased to find.
Superb probiotic, our Labrador Lily was prescribed this during recovery from a severe adverse reaction to Metacam. When we stopped it after 4 weeks she wasn�t right so we�ve kept her on it. It�s a bit pricey at �1 a day but well worth it for the benefits gained.
This is a tremendous probiotic . For weeks now my poor dog has lots of gastric troubles and he now has ulcerative colitis . This probiotic has worked wonders alongside diet change and he is a new boy . Highly recommend this product so much it�s the best and was recommended by my vet .
Used a number of probiotics but this one is good. Recommended by my vet for my dog and he has had no issues sin e with a suitable diet. Highly recommended
Great probiotic, perfect for a sensitive collie tummy. Great service and delivery