title: The caloric cost of pregnancy.
mesh_terms: D001824:Body Constitution; D002151:Calorimetry; D004032:Diet; D005314:Embryonic and Fetal Development; D005260:Female; D006801:Humans; D008660:Metabolism; D009584:Nitrogen / Q000378:metabolism / Q000652:urine; D009747:Nutritional Physiological Phenomena; D010101:Oxygen Consumption; D011247:Pregnancy; D012119:Respiration; D013997:Time Factors
chemical_list: D009584:Nitrogen