Just a few years ago, feeding your dog was so much simpler compared to today's nutritional advice. I remember when my parent's dog ate whatever the whole family would eat, including dessert! In addition to table scraps, he also ate commercial dog food. That dog had a happy life and lived well into his mid-teens without contracting any serious illness or disease.

Picking a commercial dog food was also easy back then. There were only a handful of brands to choose from and these pet foods all had practically the same ingredients, only varying in color and flavor.

Nowadays, there are so many varieties to choose from. Below is a list of some of the popular commercial foods available for your dog:

Organic Dog Food: Most dog food products found in the market today contain pesticides and other chemicals. If you want to give your dog food that is free of these chemicals, consider organic dog food. However, the term "organic" can be misleading, so read the ingredients carefully before making your purchase.

No Preservative or Natural Preservative Dog Food: Most dog foods contain preservatives in the form of artificial chemicals such as ethoxyquin, BHT, and BHA. These are added for two reasons: To prevent the food from spoiling and keep the taste lasting longer. Some dog foods, however, have natural preservatives like vitamin C (often listed as ascorbic acid) and vitamin E (often listed as tocopherols).

Before you buy a dog food with natural preservatives, be sure to read the ingredients first to make sure that the preservatives are actually derived from nature instead of it being artificially synthesized.

You may also buy dog foods that are free of any kind of preservatives. These products must be properly sealed in a cool, dry, bug-free place and used promptly to assure freshness.

Vegetarian Dog Food: Vegetarian dog foods allow vegetarian dog owners to exercise their dietary beliefs with their dogs. These foods contain all of the necessary vitamins and nutrients that your pet needs, so long as they are properly made. A vegetarian diet is also beneficial for dogs that are allergic to meat.

Raw Dog Food: Many dog owners believe that a diet of raw food is the healthiest way to feed their pet because this is the way wolves and other wild dog species ate. This belief has no scientific facts to value its accuracy. However, a diet of raw food can expose both you and your pet to dangerous bacteria such as salmonella and E. coli.

Therapeutic Dog Food: Therapeutic dog foods, along with necessary medical care, have been the growing trend in dog food products today. It is only available through a veterinarian and is usually prescribed for cases of preventive treatment, as an after-surgery diet, or for certain health problems like food allergies.