How to feed dogs? This is a big question which has no final answer. To be more exact there are a lot of answers. Some masters insist on natural products - meat, riсe, vegetables. Others prefer commercially prepared frozen, dry or canned food. Ones consider that it's better for a dog to eat the same food permanently, others support the idea of a great variety of meals. A lot of publications and internet materials can be found on this dramatic topic (see, for example, http://www.cesarsway.com/dog-care/dog-nutrition/Dishing-Up-Variety).
But the trick is the issue of feeding becomes problematic mostly for advanced dog masters. A great number of ordinary people who have dogs do not think deeply about this matter and feed their pets with what they consider suitable. Very often masters share with their beloved four-legged creatures ice-cream, sweets, sweet cookies, even beer, and many other products that are far from being useful for animals. It's too difficult to refuse to give our dogs what we eat ourselves. Our pets are excellent actors and looked into our eyes as they are starving. It seems as an optimum way out to share with them fruits: apples, peaches, persimmmons, even water melons. However, the individual tastes of our pets shoud be taken into account :-))