The common name for the disease caused by a deficiency of vitamin C is scurvy. This condition occurs when the body lacks adequate vitamin C, which is essential for collagen production, immune function, and overall health. Symptoms of scurvy include fatigue, swollen gums, joint pain, and a general feeling of malaise. Historically, scurvy was particularly prevalent among sailors and people with limited access to fresh fruits and vegetables, which are primary sources of vitamin C. The disease can be effectively treated and prevented by incorporating vitamin C-rich foods, such as citrus fruits, berries, and leafy greens, into the diet.