Dogs that eat too much liver may be prone to a condition called hypervitaminosis A, or an overdose of vitamin A. Symptoms of a vitamin A overdose can include bone deformity, bone spurs on the dog's legs or spine that cause him to limp, digestive upsets, muscle weakness, stiffness or weight loss. (vetinfo.com)
The disease is called hypervitaminosis A, or vitamin A toxicity. (cathealth.com)
On October 8th, the Michigan State University (MSU) Diagnostic Center for Population and Animal Health (DCPAH) revealed that it had identified 16 cases of confirmed hypervitaminosis D (vitamin D toxicity) in dogs from 8 states (Michigan, Texas, Colorado, Wisconsin, California, Illinois, North Dakota and Utah). (petpeoplesplace.com)