and minerals are crucial in a dog's diet plan. An animal's diet influences its system directly. If these conditions are met a dog's resistance is more powerful. Pet owners should know that vitamins A, D, E, and K are the fat-soluble vitamins and many others are water-soluble nutritional supplements. click for source
thrives on vitamins. Deficiency of vitamin A leads to skin lesions and night blindness and a lack of vitamin D leads to weakening and the softening of the bones.