Crohn's disease is associated with an increased prevalence of osteoporosis. Corticosteroids, commonly used to control exacerbations, appear to be a major risk factor for subsequent development of osteoporosis. Exclusion diets, avoiding foods that precipitate symptoms, frequently allow control of the disease avoiding the use of corticosteroids and may thereby reduce the risk of osteoporosis.
Dear KL, Compston JE, Hunter JO. Clin Nutr. 2001 (Dec);20 (6): 541-546