Any time a cat is overweight she is not only consuming excess calories / food, but excess minerals as well. (youngagainpetfood.com)
Ultrasonic products are more contemporary, quiet and efficient, but need some extra care while cleaning because they may sometimes produce white dust resulting from excess minerals in tap water. (welcomeparenthood.com)
The hair is tested because it is one of many places the body dumps excess minerals and heavy metals for storage away from vital organs. (myersdetox.com)