Weight Gain | Weight Gain Supplement for Dogs

Wellbeing

Weight Gain | Weight Gain Supplement for Dogs

£27.95

Supports Healthy Weight Gain
Maximises Nutrient Absorption
Supports Muscle & Heart Health

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Made in the UK

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Aviform Weight Gain is a premium meal topper powder specifically formulated to help underweight, fussy-eating or recovering dogs reach and maintain a healthy weight quickly, safely and palatably. Unlike generic weight gain products that rely on empty calories, Aviform Weight Gain combines a calorie-dense base with two uniquely added functional ingredients Actigen prebiotic and Taurine to ensure dogs gain weight in the right way.

Actigen is a clinically recognised Mannan-rich fraction (MRF) prebiotic, making this the only weight gain supplement for dogs to include this ingredient. It improves gut efficiency, maximising the absorption of calories and nutrients from the high-fat, high-protein formula. It also helps stabilise stool quality during high-calorie feeding and supports immune resilience in dogs that are nutritionally depleted.

Taurine is an amino-sulfonic acid that supports heart function, bile acid formation, retinal health and muscle contraction critical when deliberately increasing a dog's caloric intake and growth rate. The formula also includes soy protein and pumpkin protein for a complete protein profile, flaxseed and coconut milk for healthy fats and skin and coat support, and natural meat flavour for exceptional palatability.

Aviform Weight Gain is simply sprinkled onto wet or dry food with no mixing required, making it ideal for fussy eaters, rescue dogs, sick dogs and seniors.

High-Calorie, High-Protein Formula

A calorie-dense base combined with soy and pumpkin protein provides the energy and complete protein profile needed to support healthy weight gain and muscle development.

Actigen MRF Prebiotic Unique to This Supplement

The only dog weight gain supplement to include Actigen, which improves nutrient absorption, stabilises digestion during high-calorie feeding and supports immune health.

Added Taurine for Heart and Muscle Health

Taurine supports heart function, bile acid production and skeletal muscle contraction helping ensure weight gain is lean, functional and safe.

Healthy Fats for Coat and Skin

Flaxseed and coconut milk provide omega-3 and omega-6 fatty acids and healthy fats that support coat condition and skin health as your dog regains condition.

Highly Palatable and Easy to Use

Natural meat flavour makes this supplement appealing even to fussy eaters simply sprinkle onto food with no mixing required.

Composition

Ingredient
Soy Protein (Complete protein source to build lean muscle and support satiety. Non-GMO.)
Flaxseed (Rich in omega-3 and omega-6 fatty acids to support growth, skin health and natural immunity.)
Coconut Milk (High in healthy fat for weight gain. Supports coat condition and freshens breath.)
Pumpkin Seed Protein (Natural source of protein and calcium. Supports muscle maintenance and healthy digestion.)
Vegetable Powder (Full-spectrum vitamins, minerals and iron to replenish depleted nutrients and support overall health.)
Actigen MRF Prebiotic (Improves gut microbiome, boosts nutrient absorption, stabilises stool quality and supports immune resilience.)
Taurine (Supports heart health, fat digestion, skeletal muscle function and antioxidant protection during high-calorie refeeding.)

Analytical Constituents

Nutrient	Value
Crude Protein	38%
Crude Fat	44%
Crude Fibre	3%
Crude Ash	<2%
Calories per 100g	563
Calories per 7g scoop	43

Aviform Weight Gain couldn't be simpler. Add the recommended number of scoops to your dog's regular food wet or dry once per day. The irresistible meaty flavour does the rest.

Dog Weight	Daily Amount	1 300g pouch Lasts	2 x 300g pouchs Lasts	3 x 300g pouchs Last
Up to 10kg	1 scoop per day	42 days	86 days	129 days
10–25kg	2 scoops per day	21 days	43 days	64 days
25–40kg	3 scoops per day	14 days	29 days	42 days
Over 40kg	4 scoops per day	10 days	21 days	32 days

Scoop included. Store in a cool, dry place away from direct sunlight. Ensure pouch is tightly sealed after use.

1 scoop = 7g approximately

Suitable for dogs aged 12 weeks and over, including pregnant and nursing dogs.

Not suitable for dogs with pancreatitis due to high fat content.

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3 Reasons To Shop With Aviform

Why thousands of animal owners trust Aviform.

Formulation First

Every product starts in our UK lab. We use only FEMAS-assured, highest-purity ingredients — no fillers, no compromise.

Delivered to Your Door

Subscribe & save 25%, or order one-off. Free shipping over £35, dispatched same day before 2pm.

See the Difference

Backed by our 60-day guarantee. If you don't see results, we'll give you a full refund — no questions asked.

Frequently Asked Questions

Aviform Weight Gain is the only dog weight gain supplement that includes both Actigen MRF prebiotic and Taurine alongside a proven high-calorie, high-protein base. Most weight gainers simply add bulk calories. Aviform ensures those calories are absorbed efficiently, digested comfortably and supported by the nutrients your dog's heart, muscles and gut need during refeeding.

Each 7g scoop contains 43 high-quality calories. Per 100g, the product provides over 563 calories — making it one of the most calorie-dense supplements on the market.

Yes. Simply sprinkle the recommended scoops on top of your dog's existing wet or dry food daily. You don't need to change their diet Aviform Weight Gain works as a meal topper.

The natural meaty flavour is highly palatable and acts as an appetite stimulant. The flavour comes from natural flavourings and does not contain meat which means it's suitable even for dogs with meat allergies. Most dogs take to it immediately, even those that have previously been reluctant eaters.

Yes. Aviform Weight Gain is suitable for pregnant and nursing dogs as well as puppies from 12 weeks of age.

When you increase a dog's calorie and protein intake, you're placing greater demand on their digestive system. The Actigen MRF prebiotic helps ensure those extra calories are actually absorbed not wasted. It also helps prevent loose stools, a common side effect of high-calorie diets, and supports the gut immune system which is often compromised in underweight or recovering dogs.

As you increase caloric load and growth rate, you increase metabolic demand on the heart and digestive system. Taurine supports heart function, helps form bile salts essential for fat digestion, and supports skeletal muscle so you're not just making your dog heavier, you're making them stronger and more metabolically resilient. This is particularly important for breeds with known taurine sensitivities and for dogs in recovery.

Aviform Weight Gain is plant-based and the meaty flavour is derived from natural flavourings making it suitable for dogs with chicken or meat allergies. The product does contain gluten-containing ingredients, so if your dog has a gluten sensitivity, please consult your vet before use.

No. Due to its high fat and protein content, Aviform Weight Gain is not suitable for dogs with pancreatitis, diabetes, colitis, or dogs on a prescribed low-fat diet. Please consult your vet if your dog has any existing health conditions.

Yes. Aviform Weight Gain can be used daily on an ongoing basis. Once your dog reaches their target weight, you may wish to reduce the amount or continue at a maintenance level adjust according to your dog's individual needs.

Yes, in most cases. If your dog is currently on medication or other supplements from another brand, we recommend checking with your vet first.

Results vary depending on your dog's starting condition, metabolism, and how consistently the supplement is used. Many owners report visible improvement within a few weeks of daily use.