Amino acids are the building blocks of proteins.
There are about 22 different amino acids that most mammals need for various bodily activities. Out of that 22, dogs can internally synthesize 12, leaving 10 that must be derived from their diet.
Corn, wheat, soy, oats, barley, etc, are high sources of carbohydates. Carbs are used for quick burnable fuel for muscular, brain, and metabolic activities.
Since we know that 10 of those essential amino acids must come from their food source, then it is logical to chose a protein source that comes with a full spectrum of amino acids; fish, eggs, beef, lamb, etc.
If we choose a carbohydrate such as corn for the protein source, then our dogs only receive 4 of the 10 essential amino acids that they need.
It is not that corn/grains are bad for them, as much as it is that they are not the most nutritional dense protein, for them. |