Why bison liver is one of the best things you can feed your dog
If you've ever given your dog a piece of liver and watched their entire personality change, you already know. Something about it just hits different.
Liver has been a staple in raw feeding and whole food dog nutrition for a long time — and for good reason. It's one of the most nutrient-dense foods a dog can eat. But not all liver is the same, and bison liver in particular is worth talking about. Here's what's actually in it, why dogs go so wild for it, and how Mumbies Yummies Bison Liver Treats make it easy to add to your dog's routine.
What makes liver so good for dogs
Liver is what nutritionists call an "organ meat" — and organ meats are nutritional powerhouses in a way that muscle meat alone just can't match. Here's what's packed inside:
Protein — and a lot of it
Liver is exceptionally high in protein, which is essential for muscle maintenance, tissue repair, immune function, and energy. Dogs are biologically designed to thrive on animal protein, and liver delivers it in a highly bioavailable form — meaning their bodies can actually absorb and use it efficiently.
Vitamin A
Liver is one of the richest natural sources of vitamin A on the planet. For dogs, vitamin A supports healthy vision, skin, coat, and immune function. It's also essential for growth and reproduction. The form found in liver — retinol — is the form dogs can use directly, without the conversion step that plant-based sources require.
B vitamins — especially B12
Bison liver is loaded with B vitamins, and B12 in particular is worth calling out. B12 supports healthy nerve function, red blood cell production, and energy metabolism. Dogs who are deficient in B12 can become lethargic, lose their appetite, or develop digestive issues. Liver is one of the most efficient ways to get it naturally.
Iron
The iron in liver is heme iron — the form found in animal tissue — which is absorbed far more readily than the non-heme iron found in plant sources. Iron is essential for healthy red blood cells and oxygen transport throughout the body. For dogs recovering from illness, surgery, or anemia, liver can be especially supportive.
Copper, zinc, and folate
Liver is also a meaningful source of copper (important for iron absorption and connective tissue), zinc (immune function, skin health, wound healing), and folate (cell growth and function). It's genuinely one of the most complete single-ingredient foods you can offer a dog.
Why bison liver specifically
Most liver treats you'll find are made from chicken or beef — and those are fine. But bison liver has a few things going for it worth knowing:
Bison are largely grass-fed and pasture-raised. Unlike conventional beef cattle, bison in the US are almost exclusively raised on open pasture. That translates to leaner meat and organ tissue with a different nutritional profile — generally higher in omega-3 fatty acids and lower in saturated fat compared to conventionally raised beef.
It's a novel protein. For dogs with sensitivities or allergies to common proteins like chicken or beef, bison is a great alternative. Novel proteins are proteins a dog hasn't been regularly exposed to, which means they're less likely to trigger an immune response. Bison is one of the cleaner options available.
Dogs love the taste. This is less scientific and more observational — but bison liver has a rich, intensely savory flavor that dogs find genuinely irresistible. If you have a picky eater, a dog who's gone off their food, or a dog who needs a little extra motivation during training, liver tends to cut through.
A note on moderation
Liver is nutrient-dense enough that "more is more" doesn't quite apply. Vitamin A in particular accumulates in the body, and too much over time can cause issues. The general guidance is that organ meat should make up no more than about five to 10 percent of a dog's overall diet.
The good news: as a treat or training reward — which is exactly what Yummies Bison Liver Treats are designed for — you're well within that range. A few treats a day is plenty to get the nutritional benefits without overdoing it.
Where Yummies Bison Liver Treats come in
Mumbies Yummies Bison Liver Treats are exactly what they sound like: freeze-dried bison liver, one ingredient, nothing else.
No fillers. No preservatives. No mystery powders. Just liver, dried down to a shelf-stable treat that keeps all the nutrition intact.
Here's why freeze-drying matters: unlike cooking (which can degrade heat-sensitive nutrients like B vitamins) or air-drying (which takes longer and can affect texture), freeze-drying removes moisture at low temperatures. The nutritional profile stays almost identical to fresh liver — you're just getting something your dog can eat off the shelf without any prep.
A few things Yummies are especially good for:
Training. High-value treats get high-value attention. Because bison liver is so appealing to dogs, Yummies Bison Liver Treats tend to get fast, focused responses — which makes them a great tool for reinforcing new behaviors or working through distractions.
Picky eaters. If your dog turns their nose up at most treats, liver usually changes their mind. We've heard from a lot of dog parents whose dogs were uninterested in everything else and went absolutely wild for Yummies.
Sensitive stomachs. Single-ingredient treats are one of the easiest ways to manage a dog with food sensitivities. When there's only one ingredient, you always know exactly what your dog is eating — and if something doesn't agree with them, you can rule it in or out immediately.
Puppies and seniors. The nutrition in liver is valuable at every life stage. For puppies, it supports growth and development. For senior dogs, the B12 and iron can be especially beneficial as absorption sometimes becomes less efficient with age.
Meal toppers. If your dog has been giving their bowl the side-eye lately, crumbling a few Yummies over their food can be a total game changer. The rich, savory smell of freeze-dried bison liver is enough to turn even the most skeptical eater into a bowl-licker. It's one of the simplest ways to make an existing food more appealing — no switching kibble, no elaborate meal prep, just a little sprinkle of something they can't resist. A few crumbled pieces on top is all it takes.
The short version
Bison liver is one of the most nutritious things a dog can eat — rich in protein, vitamin A, B12, iron, and more. Bison specifically is lean, largely grass-fed, and a great option for dogs with sensitivities to more common proteins. And as a single-ingredient, freeze-dried treat, Yummies Bison Liver Treats are one of the simplest ways to get that nutrition into your dog's day — whether that's as a training reward, a between-meal treat, or crumbled right over their bowl to get a picky pup actually excited about dinner.
Your dog is going to love them. Possibly more than they love you. (We don't make the rules.) 🐶
