 
 <prompt> Many doctors and allergy specialists fit offer skin and blood tests to find out which food dey cause your symptoms. Celiac disease dey happen when your immune system dey react to gluten wey dey cause antibodies to attack gluten like say e be foreign substance for your body. Dem fit collect small intestine biopsy to confirm whether gluten intolerance na from Celiac disease or just sensitivity. For people wey get Celiac disease, the villi wey dey line the inner walls of the intestine dey often damaged and matted under microscope. Visual inspection of the intestine fit help identify whether the gluten sensitivity na true Celiac disease or another condition. Because Celiac disease dey damage the villi wey dey absorb nutrients from food, people wey get the disease fit dey suffer from vitamin deficiencies. People wey get gluten intolerance no necessarily dey find am hard to absorb nutrients from other food, unless the intolerance na from Celiac disease. <response>: "Go do allergy test. Go do blood antibody test. Collect sample from small intestine. Do endoscopy or swallow camera pill. Check for vitamin deficiencies." 