Common symptoms of vitamin deficiencies can include fatigue, weakness, and specific skin issues. For instance, a deficiency in Vitamin D may lead to bone pain or muscle weakness, while lack of Vitamin C can cause scurvy, characterized by bleeding gums and wounds that heal poorly. Moreover, deficiencies in B vitamins may result in neurological issues or digestive disturbances. Identifying these symptoms is crucial for obtaining early diagnosis and treatment, potentially preventing long-term health complications associated with inadequate nutrient intake.