Proper.ombinations of Foods. Most vegetarian dog foods use soy as a protein source. A vast majority of dog owners go for dry dog food for its convenience and ease of storage. This renovating material must be supplied through the medium of food and drink, and the best food is that by which the desired end may be most readily and perfectly attained. The digestible food elements are often grouped, according to their chemical composition, into three classes; vis., carbonaceous, nitrogenous, and inorganic. 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 . You have to estimate the amount of water that you need for entire of the trip. Many commercial dog foods are made from materials unusable or less desirable for human consumption. The great diversity in character of the several tissues of the body, makes it necessary that food should contain a variety of elements, in order that each part may be properly nourished and replenished. Other Popular Contenders: Canned, Semi-Moist and More Other categories of dog food include the semi-moist type and canned food. It is thus apparent that much care should be exercised in the selection and combination of food materials. Curry, which is an Indian food, has evolved to be a staple dish in South East Asia. Looking for nutritious calories from quality food instead. The other kind of food that very popular among hikers is frozen dried food, due to its very lightweight and easy to contain in a backpack. But its not just about checking them. Uses of The Food Elements. Albumen is found in its purest, uncombined state in the white of an egg, which is almost wholly composed of albumen. Needless to say, meat by-products are far cheaper than meat, so this type of dog food is not only easy to store, it’s much less expensive than other types.