Over the last few decades, many dog owners have started looking beyond traditional kibble and canned foods. As a result, fresh dog food and raw dog food have become two of the fastest-growing feeding options.
Both approaches move away from highly processed pet food and focus on real ingredients. Both typically contain recognisable meats and whole-food ingredients. Both can provide dogs with a diet that is closer to food than many conventional pet foods. But while fresh and raw diets have a lot in common, they are not the same thing.
The main difference comes down to one factor: cooking.
What Is Fresh Dog Food?
Fresh dog food typically refers to meals made from fresh ingredients that are gently cooked. The ingredients often include meat, organs, vegetables and other whole-food ingredients. Unlike kibble, they are not subjected to the high temperatures and pressures used during extrusion. Many fresh foods are cooked using relatively gentle methods before being chilled or frozen to preserve them.
For many dogs, fresh cooked food can be a significant step up from highly processed diets. However, it’s important to remember that as the industry has grown, there are significant disparities in the quality of food from manufacturer to manufacturer. Not all fresh food is equal, so it’s still vital to do your research.
What Is Raw Dog Food?
Raw dog food is made from uncooked ingredients, usually including meat, bone, organs and other natural ingredients. Rather than being cooked, the food is frozen to preserve freshness. This means the ingredients undergo fewer processing steps and avoid the changes that occur when heat is applied to food.
Raw feeding aims to provide nutrition in a form that remains as close as possible to the original ingredients.
What Do Fresh and Raw Diets Have in Common?
Fresh and raw diets share a number of advantages over traditional ultra-processed pet foods.
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Both are typically based on real ingredients rather than highly refined fractions and extracts.
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Both generally contain higher moisture levels than kibble.
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Both avoid the multiple stages of high-temperature processing associated with extrusion.
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Both can provide highly palatable meals that many dogs enjoy eating.
For owners looking to move away from highly processed diets, either option is a positive change.
The Key Difference: Heat
The biggest difference between fresh and raw food is that fresh food has been cooked, whilst raw food has not.
Cooking alters the structure of proteins, changes the physical properties of fats and can reduce levels of certain heat-sensitive nutrients.
These changes are not unique to pet food. They occur whenever food is heated.
Some nutrients remain largely unaffected by cooking, while others are more susceptible to degradation. The extent of these changes depends on both the temperature used and the duration of cooking.
Raw food avoids these heat-related changes because the ingredients are preserved through freezing rather than cooking.
What About Digestibility?
Cooking can increase the digestibility of some ingredients by breaking down connective tissues and altering protein structures. This can make cooked food a good option for a dog who is struggling with digestive challenges.
However, the generally healthy dog is already well equipped to digest raw meat and organs.
The Importance of Processing
One useful way to think about fresh and raw feeding is through the lens of processing.
Fresh cooked foods are generally less processed than kibble.
Raw foods are generally less processed than fresh cooked foods.
As processing increases, there is greater potential for structural and nutritional changes within the food.
What About Bacteria?
One of the most common arguments in favour of cooked dog food is that cooking reduces bacterial contamination. Heat can significantly lower the number of bacteria present in food, which is one reason cooking has been used as a food preservation method for centuries.
However, the relationship between bacteria and dog food is more complex than simply "cooked is safe and raw is unsafe."
Dogs possess physiological adaptations that allow them to cope with bacterial exposure from animal tissues, including highly acidic stomach contents and a relatively short digestive tract. In addition, bacteria can be introduced to food after cooking through handling, storage or environmental contamination.
The quality of the ingredients, manufacturing standards, storage conditions and food handling practices all play important roles in food safety, regardless of whether a diet is cooked or raw.
For owners feeding a raw diet, sensible hygiene practices such as proper storage, thawing and cleaning of feeding equipment help minimise risk. Ultimately, both cooked and raw foods can be fed safely when produced and handled responsibly.
The bottom line…
For many dogs, fresh food can be a fantastic step away from ultra-processed pet food. However, when comparing fresh and raw diets side by side, raw feeding remains the least processed option. Without the need for cooking, ingredients retain their natural moisture and avoid the changes that occur when heat is applied.
Both approaches focus on real food, but for owners looking to minimise processing and preserve as much of the original ingredient as possible, raw feeding remains the closest option.
Lisa Hannaby-Aird
A Registered Associate Nutritionist who specialises in translating nutrition science into practical, everyday guidance for dog owners, drawing on her training in nutrition alongside a background in psychology, biochemistry, and neuroscience.
