Awasome What Vitamin Deficiency Causes Hair Loss In Dogs References. Web normal shedding or hair loss — how to tell the difference. Alopecia in dogs is the medical term for hair loss.

Web another vitamin deficiency that can cause hair loss is biotin deficiency. To prevent hair loss from occurring due to a vitamin deficiency, pet owners should adjust their dog's diet to include foods rich in vitamins and minerals, healthy fats and oils, and avoid allergens. Here’s what you need to know if your fur friend is losing their fur.