Before commercially processed pet food, pet owners fed their pets table scraps and leftovers. Some bought meat scraps from the butcher. It was also more common for pets to roam outside and Testmax Nutrition supplement their meals with whatever they could catch.In 1860, James Spratt produced the first commercial pet food for dogs, which was called a dog cake. In the 1950s, his company became part of a major food manufacture. Dog biscuits came along in 1907 and were originally intended to be a meal, not just a treat. In the 1920s, canned food was produced and became popular. During World War 2, tin used for the cans became important for manufacturing things needed for the war effort. Less canned pet food was produced and dry food, or kibble, became more popular. The first kibble was Dog Chow and Cat Chow.

Dry pet food is made of dry meal and meat as well as added vitamins and minerals. A hammer mill is used to grind the dry ingredients to a specific particle size. The result is what looks like flour. This flour is mixed with the wet ingredients, the meat and fat, and steamed to begin cooking. High temperatures are needed in order to destroy toxins.Studies have shown that for puppies, an enhanced diet with specific ingredients is important. This is especially true for large breed puppies, which are considered to be puppies Testmax Nutrition Reviews that will be at least 50 pounds when full grown. Large breed puppies, with not enough calcium and Vitamin D, which helps absorb the calcium, are prone to hip dysplasia and arthritis as they get older. Large breed puppies that grow at a slower rate have been shown to have less chance of developing hip dysplasia. In response to this finding, pet food manufacturers now produce special "large breed" formulas. Older dogs that already have hip pain and arthritis can be helped with supplements of glucosamine and chondroitin.