human
My doctor says I'm deficient in vitamin D. What are the symptoms of vitamin D deficiency and how can I treat it?
assistant
Symptoms of vitamin D deficiency include fatigue, weakness, bone pain, muscle aches, depression, low immunity, brittle nails, and osteoporosis. To treat vitamin D deficiency, you should take a supplement that contains at least 400 IU of vitamin D per day. You may also need to increase your exposure to sunlight or eat foods high in vitamin D such as fatty fish, fortified dairy products, and eggs.