Individuals with Crohn’s disease may be prone to various nutrient deficiencies due to malabsorption, increased nutrient loss, and inflammation in the digestive tract. Common deficiencies include vitamin B12, iron, calcium, vitamin D, zinc, and magnesium. These deficiencies can be identified through blood tests that measure the levels of specific vitamins, minerals, and other nutrients in the body. It is important for individuals with Crohn’s disease to work closely with their healthcare team, including a gastroenterologist and a registered dietitian, to monitor and manage their nutritional status and address any deficiencies through dietary adjustments, supplementation, and appropriate medical interventions.