Many.rticles of food are, however, deficient in one or the other of these elements, and need to be supplemented by other articles containing the deficient element in superabundance, since to employ a dietary in which any one of the nutritive elements is lacking, although in bulk it may be all the digestive organs can manage, is really starvation, and will in time occasion serious results. Hence it may be said that a food deficient in these elements is a particularly poor food. This kind of food could be contained in hiking backpack but only in considerable amount. Against this, you cannot do anything, but you can ensure that your food lasts longer and keeps fresh. Major dog food companies try to provide balanced proportions of vitamins and minerals for maximum benefit to your dog. These soups along with the countless dishes are very popular in North America, France, and Russia. Chicken, egg and fish are examples of protein that is provided in natural dog food. For the same reason, if the radishes have shrivelled, place them in a jar of cold water. Most commercial dog food companies address this need with offerings such as senior dog food, containing about 18 % protein, and food for dogs diagnosed with renal failure, containing about 14% protein. A smart owner will avoid purchasing the economy food, which is made from lower grade ingredients for example, economy dog food will often substitute cheap corn for the more expensive meat by-products . Fats are found in both animal and vegetable foods. Milk sugar is one of the constituents of milk. Except gluten, none of the food elements, when used alone, are capable of supporting life. So you need to carefully consider the food that you give your dog. Semi-moist food is attractively convenient to owners, and dogs love it.