Everyone would agree that a balanced diet is important.
But what does “balanced” mean? The common view is that a diet is balanced if the food contains sufficient quantity of the various nutrients - proteins, fats, carbohydrates, minerals, vitamins and water to meet the needs of the body for maintenance, growth, reproduction and exercise. This definition fails to take account of several important factors:
Production and elimination of waste are normal functions of the body. Wastes are produced as an end result of breakdown and utilisation of nutrients. Protein and fat produce more harmful waste products than carbohydrate so a diet which is high in carbohydrate and low in protein and fat will reduce the toxic load which has to be eliminated.
Our definition of a balanced diet is that what goes in equals what comes out!
This means that over a period of time the body will maintain a good state of health and normal function and that all wastes will be efficiently eliminated. In practice, many domestic pets do not have a balanced diet. In most instances food INTAKE exceeds OUTPUT
Excess intake can result from
Decreased output can result from