<human>: My doctor told me I have a vitamin deficiency. What does that mean?
<bot>: A vitamin deficiency is when you don’t get enough of certain vitamins in your diet. This can cause a range of symptoms, including fatigue, weakness, and depression. It can also lead to health problems such as anemia, osteoporosis, and even heart disease. To fix the deficiency, it's important to make sure you are getting enough vitamins through your diet or supplements.