The Pros And Cons Of Different Types Of Cat Food
Feline nutrition is very important for general health. However, the plethora of dietary options, brands and formulas available to consumers can be confusing, when deciding which kind of cat food is best for your feline friend's health and wellness.
Unlike humans and various other creatures (dogs included), cats' evolutionary process has resulted in no dietary need for carbohydrates. Just like their undomesticated, and much larger relatives, domesticated cats' bodies have adapted to a protein and fat rich, carbohydrate-poor diet. In the wild, cats use plants, primarily tall and short grass, for digestive regulation and dental support. However, wild cats do not consume vegetable or plant matter for the purpose of energy or nutrition.
High quality cat foods are formulated with this evolutionary platform, and feline nutrition requirements, in mind.
Cats are unique in their attachment to specific textures of their food and it is difficult to get them to accept/change to other forms of food. For this reason, we recommend that you try to feed kittens a mix of canned and dry with the hope that they will always accept both.
At Edgewood Animal Hospital, we take pride in providing our patients and their human caretakers with all the information necessary to help cat owners make educated decisions about all facets of feline nutrition, cat foods included. This is also why we work closely with a certified veterinary nutritionist at our practice.
For the first month of a cat's life, kitten food comes in the form of mother's milk, and/or commercial milk replacer formula given every 2-4 hours if the kitten has been separated from its mother. Once this initial period passes, kitten food can become a dietary staple in the following stages, amounts and frequency:
Kitten food is usually very high in protein, calories and fats, which are all necessary to support healthy growth and body function. Feeding the right kitten food in the right amounts, and at the right times throughout the day is essential for happy, growing cats. Our veterinary staff would be happy to discuss the best kitten food options for your feline friend, as well as a proper feeding schedule at your next veterinary appointment.
Although dry cat foods are very popular among cat owners, they should be considered the second choice for cat food. This is because dry foods have a higher carbohydrate count than we consider optimal. In addition, the protein choice tends to be higher in plant and not animal based protein.
The high levels of carbohydrates and plant protein can lead to weight gain and digestive issues, especially in older and more sedentary cats. However, dry food is convenient and the best choice for busy households. Some premium food brands have developed formulas of speciality, prescription formula dry cat foods which can be sound choices for cats with allergies, certain health conditions, and as part of a diet also containing canned or fresh food.
Senior Cat Food
Beginning around 7 years of age, cats begin transitioning from adulthood to the mature/senior stages of life. This transition causes health and lifestyle changes with a cat's:
If your cat is doing well on his current diet, then there may be no need to change to a different formula. Some brands make a Senior cat food which is specially formulated to deliver ingredients which are more easily digested than standard adult cat foods. Senior cats are more likely to develop health issues related to intestines and kidney disease. There are diets specifically formulated to benefit cats with these issues which may help slow the progression of these diseases.
Your veterinarian can help you choose the best cat food for your senior cat by taking pre-existing medical conditions, current health status and overall lifestyle (indoor, outdoor, sedentary, active, etc.) into account.
Understanding Feline Nutritional Requirements
Cats, like all living creatures, require six classes of nutrients:
The single most important nutrient for sustaining healthy cell and overall body function. Cats lose water through their:
Cats also have evolved to receive the majority of the water in their diets through the consumption of food. This is why sound feline nutrition includes a diet that is rich in unprocessed proteins and water. Canned cat foods are usually formulated with water content in mind, and can contain up to 80% of this feline nutrition requirement per serving.
Protein is a fundamental component of feline nutrition that is necessary for the maintenance and support of a cat's:
Additionally, many of a cat's functional body components are made of proteins, including:
Proteins all have their own digestibility profile, because some proteins, like fish and chicken, are more available for use in the body than other proteins, like plant and dairy. Digestibility refers to the net amount of protein that is left after the cat food's chemical breakdown in the body.
Proteins also contain essential amino acids that synthesize, or break down and utilize, the protein molecules themselves. Amino acids are synthesized in the liver with the help of carbon and nitrogen. There are 30 total amino acids, 20 dispensable (or non-essential) and 10 non-dispensable (or essential). Dispensable refers to the ability to be safely absent from a diet. This means the 10 non-dispensable, or essential amino acids, must come from a cat's diet. A high quality cat food that follows a sound feline nutrition requirement protocol will only use unprocessed or minimally processed fish, poultry and meat that contain upwards of 40% of this feline nutrition requirements per serving.
Essential fatty acids:
Essential Fatty Acids, also known simply as fats, provide the most concentrated source of energy of any feline nutrition requirement. In cats, fats provide energy, making carbohydrates unnecessary. Fats carry fat soluble vitamins:
Fats also supply linoleic and arachidonic acids, which are essential for overall health. Cats that have fat deficiencies will display the following symptoms:
A high quality cat food will contain between 20-40% fat (essential fatty acids) of total daily calorie intake.
Vitamins are organic substances (made by plants or animals) that are very important feline nutrition components because they help regulate various body processes, including:
There are two types of vitamins, fat soluble and water soluble. We mentioned fat soluble vitamins above, but the difference between them is:
The water soluble vitamins are:
A raw or minimally processed cat food diet usually fulfills vitamin requirements naturally through the use of whole foods like chicken, meat and fish. Dry foods usually add synthetic vitamins to make up for the removal of natural ones during processing. Although there is no universally accepted vitamin intake requirement for cats, exhaustive documentation exists to support vitamin intake as part of overall feline nutritional health and wellness.
Minerals are inorganic substances that are produced in soil or water, and that are consumed by plants or animals to regulate:
Just like vitamins, there is no universally accepted mineral intake requirement for cats, but volumes of data exist indicating the need of the following minerals to help facilitate healthy body functioning:
The overall balance of a cat's diet is affected not only by the levels of each individual minerals, but also by the interactions between them. For this reason, we recommend consulting one of our veterinarians about mineral amounts and balance when choosing cat food, or cat food supplementation.