Feeding your pet properly is one of the most important aspects of good pet care: in an online Twitter discussion this week, there was broad agreement with the statement that “Nutrition is the single most important environmental influence on a pet’s health and well-being” . But how should an owner choose the best way to feed their pet?  The much-anticipated programme on Channel Five this week, “The Truth About Your Dog’s Food”  is bound to make people reconsider how they feed their pet pooches.

There are many different types of pet food available, from a variety of sources, and it can be confusing for pet owners. There are many “right” ways to feed a pet, not just “one true way”, but it’s common for people to find a way that works for their pet, and then to believe that this is the best way for every animal. I believe that this is the reason why people sometimes become fanatically passionate about certain ways of feeding pets (such as “raw meat and bones”)

I know that my profession – a veterinary surgeon – has been criticised for selling pet food, and there are conspiracy theorists out there suggesting that vets are influenced by the pet food companies that offer financial support to some educational programmes. If you are a believer in such wild nonsense, then don’t read any further – it’ll just be a waste of your time, because you already know that you are not going to agree with what I say.

But to the rest of you, I can say that as a vet, I have been trained in nutrition, and I have been observing the way that my patients and my own pets have been fed for the past thirty years, and this blog is my genuine effort to try to put some common sense down in writing.
There are broadly three ways to feed a pet animal.

A) ‘Human’ food or home prepared. Some people choose to feed their pet on scraps from the table, on specially prepared ‘human’ type meals or on “raw” meat and bones. This method of feeding may be fine as long as the resulting diet is balanced, with the correct combination of proteins, carbohydrates, fats, vitamins and minerals. It can be difficult to ensure that the best balance is attained, which is why most people choose to feed their pet on commercial pet foods which have been custom-made to provide all of the necessary nutrients. One recent study of home-made dog food recipes (from websites, veterinary text books, and pet care books) found that 95% were deficient in at least one essential nutrient.

B) Commercially prepared food
It’s safer to choose a commercially prepared diet: members of the Pet Food Manufacturers Association follow European nutritional guidelines for pets, reviewed by independent experts such as vets, scientists and animal nutritionists to ensure that they are correct. You may not like the sound of what they put into your pet’s food, but it does provide complete nutrition. Pet food manufacturers are bound by law to produce food that is nutritionally balanced for pets. The type of ingredients used vary, and while the raw ingredients may not look appealing to humans, the final product is carefully designed to appeal to humans as well as to pets.

1.Moist pet food. Tinned pet food is the traditional way to feed dogs and cats: in recent years, packaging has improved so that sachets and cartons are now also available
a) A cat may be fed on tinned food (such as ‘Whiskas’ ) with perhaps a scattering of dry biscuits.
b) A dog may be fed on tinned food (such as ‘Pedigree Chum’) combined in the bowl with dry mixer biscuits.

Whilst this traditional way of feeding animals is perfectly adequate, it is not necessarily the best quality, most convenient or most economical diet.

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2. Complete dried pet food.
High quality complete dry biscuits have been increasingly used to feed pets over the past 20 years. These are effectively a combination of meat and biscuit rolled into one. In the past, ‘muesli’ type dry diets were very popular, but technology has enabled the production of so-called ‘extruded’ biscuits, which are meaty looking pellets of various sizes. These modern dry foods are popular for a number of reasons, including convenience and economy. A wide range of products is available, with considerable differences in price and quality. A good quality dry food is often the best way for most owners to feed their pets.
Comparison of the three types of feeding

Home-prepared or “raw meat” diets

Moist Food

Complete Dried Food

  • 5 – 12% water
  • Price depends on quality, but generally cheaper than moist food
  • Convenient – buy a big bag once a month. Keeps fresh for a long time if stored in a cool dry place
  • Palatability depends on price – cheaper dry foods less attractive to pets than more expensive, better quality products
  • Dry biscuits can be good for dental health – chewing helps to keep teeth and gums healthy, but replacing a portion of the daily meal with a custom-designed dental chew stick is more effective (and tooth-brushing is even more effective than this)

Controversies and conclusions
The latest fad in pet nutrition is “raw feeding”, using raw meat, raw bones and raw herbage. Proponents claim that is a “natural” diet that allows dogs to achieve optimum health and longevity. These claims are not backed up by data. Last year, a team of Swedish researchers compared the genomes of wolves and dogs and found that a big difference is dogs’ ability to easily digest starch. At the time that dogs became close companions to humans, they adapted to be able to digest wheat, rice, barley, corn and potatoes. There is plenty of evidence that dogs thrive, and live long healthy lives being fed on complete dry or moist food produced by commercial pet food manufacturers. Yes, of course dogs fall ill, but there is no evidence of a link to modern commercial pet foods, despite the loud claims of many proponents of other ways of feeding pets.
Many manufacturers of expensive dried foods also maintain that their products are made of better quality ingredients that are therefore better for dogs. And many vet clinics stock ranges of dried pet foods that are often more expensive than grocery products. Are these foods better for pets?

My conclusion
Every pet is individual and has different nutritional needs. You should choose a diet that is balanced and that your pet enjoys eating. If the diet suits your pet, they will thrive with a shiny coat, bright eyes, and good health.
My experience is that if the cheapest foods, with the lowest quality ingredients, are fed, pets tend to have dry, unkempt coats, with dull eyes and they are obviously not thriving. If such pets are changed to a high quality, more expensive diet, their condition will often improve – not at once, but after around 6 – 8 weeks which is the length of time that it takes for nutrition to have a visible external effect.
Additionally, more expensive dried foods, with high quality ingredients, tend to be more digestible, with less indigestible bulk, so that animals produce less faeces every day (which means you have to pick up less when out on walks).

A new website has been set up to compare the 1200 types of dog food that are currently available on the UK market: some of the science behind the “expert rating” of the various foods may be debatable, but the website does provide an in-depth review of the various ingredients in modern dog food, and it’s a useful way of gaining a better understanding of the subject.

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