By Will Scot
A Scottish pet product company has entered the canine supplement space with a product that takes a notably minimal approach: just four ingredients, no fillers, and a formula developed specifically with underweight and recovering dogs in mind.
Ace Antlers, registered in Scotland and best known for its range of deer antler dog chews, has launched Muzzle Mass — a venison-flavoured weight gainer supplement for dogs designed to be mixed into existing meals.
The Problem It’s Designed to Solve
Weight loss in dogs is a topic that tends to receive far less public attention than canine obesity, yet it presents equally serious health challenges — particularly for older animals. Veterinary consensus recognises that loss of lean muscle mass can negatively affect quality of life in dogs, increasing stiffness, weakness and the risk of injury.
The company’s product page draws heavily on veterinary literature to frame the supplement’s purpose, noting that muscle supports joints and stabilises movement, helps absorb impact during walking, running and jumping, contributes to balance and coordination, and plays a key role in mobility and independence.
For dogs recovering from surgery, the case for nutritional support is particularly well established. Veterinary recommendations increasingly emphasise the importance of post-operative nutrition in maintaining muscle mass and supporting recovery, and Ace Antlers positions Muzzle Mass as a tool for exactly this window — providing extra nutritional density without requiring owners to dramatically increase meal sizes while a dog’s activity remains limited.
The supplement is also marketed for appetite stimulation, a common challenge in senior animals and those coming through illness. Many dogs that would benefit most from additional nutritional support also struggle with reduced appetite or selective eating, and a palatable, mixable powder format is intended to address that barrier directly.
What’s in It
The ingredient list is where Muzzle Mass makes its clearest statement. Containing just four ingredients — coconut powder, venison powder, antler powder and carrot powder — there are no hidden nasties, fillers, cheaper meats or other things owners might not want to feed their dog.
Each ingredient has a defined role. Wild deer meat, free from any hormones or antibiotics, is gently air dried and milled into a coarse powder, and is described as leaner than other farmed meats with a greater amount of protein per gram. he antler powder — a by-product of Ace Antlers’ existing chew-cutting operation — is vacuum extracted and heat treated, and described as a natural source of protein, B2 vitamins and minerals. Coconut powder provides the primary fat source, while carrot powder is included to support digestion.
Nutritionally, the product delivers 500 calories per 100g, with 41g of natural fats, 15–25g of protein (figures vary across the label’s presentation), and 28.5g of carbohydrates. It is formulated to be hypoallergenic, making it suitable for dogs with sensitive stomachs.
One notable caveat: Muzzle Mass is not recommended for dogs with pancreatitis, a condition in which a high-fat diet can exacerbate inflammation — an important consideration for owners whose dogs have a history of the condition.
How It’s Used
For every 10kg of body weight, owners feed one scoop — approximately 40g — mixed with an equal amount of hot water into a paste, then added to the dog’s usual food. For dogs fed multiple meals a day, the dose is split equally to support digestion.
For weight gain and muscle building, the supplement is fed daily, with instructions to double the quantity if no weight gain is observed after two weeks. For appetite stimulation, recovery support and general conditioning, the company recommends use roughly three times per week.
The product comes with a measured scoop inside the bag and is made in-house by Ace Antlers.
A Broader Shift in Pet Wellness
Muzzle Mass arrives at a moment when the pet supplement market is expanding rapidly, with owners increasingly willing to invest in preventative and supportive nutrition for their animals. Responsible weight gain, the company stresses, is not about creating excess body fat — rather, it’s about condition support, helping dogs maintain strength, muscle and resilience rather than simply increasing body weight.
For a company whose core product is antler chews for dogs, the move into powdered nutrition supplements represents a meaningful expansion. Whether Muzzle Mass finds its audience will likely depend on how effectively it communicates its veterinary grounding to a market already crowded with canine health products making similar promises.
Muzzle Mass is available directly from aceantlers.com. As with any dietary change, the company advises consulting a veterinary professional for dogs with underlying medical conditions.
