Every dog is different. Individual allergies and sensitivities are common — always introduce new foods in small amounts and watch for adverse reactions. This site is for informational purposes only and is not veterinary advice. Always consult your vet.
The Full Picture
Cheddar cheese is not toxic to dogs and many dogs enjoy it as a high-value training treat. Mature cheddar contains less lactose than younger cheeses, making it slightly easier to digest. However, cheddar is high in both fat and sodium, which can contribute to obesity and pancreatitis if fed regularly or in large amounts. Some dogs are lactose intolerant and may develop gas, bloating, or diarrhoea after eating any cheese. Use small cubes or thin slices as an occasional reward rather than a regular snack. Avoid processed cheese slices or cheese products with added flavourings, as these may contain harmful additives.
What You Should Know
While cheddar is not outright toxic, there are important precautions to bear in mind before sharing it with your dog. Portion size matters, and certain preparations or varieties may be unsafe. If your dog has any existing health conditions, check with your vet first.