− | After [[Calcium - Nutrition|calcium]], phosphorus is the '''second most prevalent mineral in mammals''', including dogs and cats. Like calcium, it is found in the highest proportion in [[Bones - Anatomy & Physiology|bone]] (about 86%) but is also found in other tissues such as muscle (about 8.6%). Like calcium it does not exist in its free state but in the form of phosphates. | + | After [[Calcium - Nutrition|calcium]], phosphorus is the '''second most prevalent [[Minerals - Nutrition|mineral]] in mammals''', including dogs and cats. Like calcium, it is found in the highest proportion in [[Bones - Anatomy & Physiology|bone]] (about 86%) but is also found in other tissues such as [[Muscles - Anatomy & Physiology|muscle]] (about 8.6%). Like calcium it does not exist in its free state but in the form of phosphates. |