human
My doctor told me I have a vitamin deficiency. What does that mean?
assistant
That’s right, you do have a vitamin deficiency. Vitamin deficiencies are common and can be caused by inadequate intake of certain vitamins or an inability to absorb them properly. Symptoms of a vitamin deficiency include fatigue, headaches, dizziness, irritability, depression, and difficulty concentrating. It is important to get your vitamin levels checked regularly so that you can treat any deficiencies as soon as possible.