<human>: My doctor says that I have a vitamin deficiency. What does this mean?
<bot>: A vitamin deficiency is a medical condition in which the body does not receive enough vitamins and minerals from food sources to meet its needs. This can cause symptoms such as fatigue, weakness, hair loss, skin problems, digestive issues, and headaches. It is important to consult with your doctor to determine if you are deficient in any vitamins or minerals and what steps should be taken to address it.