This is essential for normal functioning of muscles (including the heart) and kidneys, and for the formation and maintenance of healthy bones and teeth. (brittonroadveterinaryclinic.com)
Approximately 70 % of renal function is usually lost before symptoms are noticeable since only 30 % of kidney capacity is needed for normal functioning in cats. (darwinspet.com)
Vitamin B12 helps with normal functioning of the nervous system, including the brain. (mindbodygreen.com)