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SUSTAIN® for Dogs 

SUSTAIN® is a daily probiotic and prebiotic supplement for dogs, formulated to support long term gastrointestinal (GI) health and normal immune-system function. It is a unique dual probiotic formulation, with prebiotic, beta-glucans and supportive vitamins and minerals.

SUSTAIN®
for Dogs 

SUSTAIN® is a probiotic supplement for dogs designed to support long-term digestive and immune health. A dog’s digestive tract is home to trillions of microorganisms, collectively known as the gut microbiota.

SUSTAIN® was the UK's first veterinary dual probiotic, combining two strains of live "good" bacteria with a prebiotic that feeds them, plus beta-glucans to help support normal immune function. Together they help maintain a healthy balance of the gut microbiota - the trillions of beneficial bacteria that play a role in digestion, immunity and overall wellbeing.

The unique SUSTAIN® formulation means the product can be beneficial in a variety of different situations and is designed for long term use. For sudden or short-term digestive upset, your veterinarian may recommend a different product, such as PROMAX®.


SUSTAIN® is available in a palatable powder, in individual sachets, for easy feeding to dogs. It is designed to be mixed in with food.

Pack Size: SUSTAIN® for Dogs is available in two pack sizes. 

  • Small/Medium Breed – dogs under 20 kg

  • Large Breed – dogs over 20 kg

Each pack contains 30 individual daily sachets.

Information on Gut Health

The digestive system does much more than break down food. It is responsible for absorbing nutrients and water, and maintaining an important barrier between the contents of the intestine and the rest of the body. The digestive tract also contains a complex community of bacteria and other microorganisms called the gut microbiota or gut microbiome. A healthy intestinal microbiota contributes to normal digestion and metabolism, production of certain vitamins and other beneficial substances and maintenance of the intestinal barrier. There are many reasons your pet may experience digestive upset or gastrointestinal tract imbalance. They may have eaten something unusual, picked up an infection, experienced stress, such as when kenneled, or may have a sensitive or irritated gastrointestinal tract. We would always recommend speaking to your vet practice for further advice if you notice: • Vomiting • Soft faeces • Blood or mucous in the faeces • Changes to faeces colour or frequency • Changes to appetite • Lethargy • Bloating • Flatulence

How can SUSTAIN® help my pet ?

SUSTAIN® contains multiple ingredients to support a healthy digestive tract. The formulation contains two different probiotic species, which are live microorganisms that help support a balanced population of microbiota within the digestive tract when supplied in appropriate amounts. This microbiota has many functions in the body, including helping reduce bad bacteria, maintaining the balance of the good bacteria, and supporting healthy digestion. SUSTAIN® also contains additional ingredients like prebiotic and beta-glucan that provide nutritional support for the intestinal lining and normal immune function, which can also support healthy skin. SUSTAIN® can help your pet feel happier and healthier.

Why does my vet recommend SUSTAIN® ?

Probiotic supplements for dogs can differ significantly in the bacterial species and strains they contain, the number of live organisms provided and whether they include prebiotics or other supportive nutrients. SUSTAIN® has a comprehensive multi-ingredient formulation: • Enterococcus faecium DSM 10663/NCIMB 10415 - a specifically identified probiotic strain used to support a healthy balance of intestinal bacteria. Providing the strain identification is important because the characteristics associated with one probiotic strain cannot automatically be applied to every strain within the same bacterial species. • Bacillus velezensis DSM 15544 - a robust probiotic that specifically support gastrointestinal health in dogs. The combination of Enterococcus faecium and Bacillus velenzensis provides two complementary types of probiotic support in one daily supplement. • Inulin - a prebiotic fibre that provides nourishment for beneficial bacteria already living within the digestive tract. • Beta-glucan - supports the normal function of the immune system with related benefits like skin health. • L-Threonine - an essential amino acid that supports the production of the gastrointestinal protective mucus lining. • B vitamins - contribute to normal energy metabolism and support the function of intestinal and immune cells. • Zinc - an essential trace mineral involved in normal cellular metabolism, immune function and the maintenance of healthy mucous membranes. SUSTAIN® was developed as a veterinary dual-probiotic formulation for long-term digestive and immune support. There are lots of different supplements available, however it is important to trust your veterinary surgeon’s advice on which one is right for your pet and why. At VetPlus, animals deserve the best. This is why we always produce the best products for the pet, from the best possible ingredients in our state-of-the-art UK facility. As a result, SUSTAIN® is used by vets in many countries globally.

How does SUSTAIN®  taste?

SUSTAIN® has a tasty pork liver flavouring, making it very palatable for dogs. The powder should be mixed with your dog’s normal food. The daily amount may be given in one meal or divided between meals. A small amount of lukewarm water can be added to help mix the powder through dry food.

What else can help?

Your vet will be able to recommend the appropriate support for your dog. Every pet is different so it is important to find the right management for the individual. This may involve diet changes, certain medication and other supportive care.

How to give SUSTAIN® 

Give SUSTAIN® daily with food. Continue for the period recommended by your veterinarian. SUSTAIN® is formulated for ongoing daily use and may be given over the long term when appropriate. • Dogs under 20kg - One small/medium breed sachet daily • Dogs 20kg - 40kg - One Large Breed sachet daily • Dogs over 40kg - Two Large Breed sachets daily

Related Products

Available through all leading veterinary clinics in New Zealand

Your local veterinary clinic can order SUSTAIN® in for you. Please contact us directly if you require help finding a local stockist. 

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