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The metabolic consequences of cerebral palsy (CP) have not been reported. The observations and suggestions presented in this article are based on our current knowledge of physiology in the general population and on information on the known metabolic consequences of disability in persons with spinal cord injury. Because of pain, fatigue, and other secondary consequences of CP, adolescents with CP who are ambulatory may become less physically active with age. This phenomenon would be expected to be associated with deconditioning and adverse changes in body composition including atrophy of muscles and an absolute or relative increase in adiposity. Insulin resistance, hyperinsulinemia, and associated adverse metabolic changes may develop. In an unfavorable metabolic milieu, the ability of the pancreas to compensate for mild elevations of circulating glucose may diminish. The combination of reduced fitness and conventional risk factors for cardiovascular disease would be expected to increase the risk for coronary heart disease (CHD); however, there has been no assessment of the risk factors for CHD in adults with CP. Once subgroups with modifiable risk factors for cardiovascular disease have been identified, risk factors for CHD should be aggressively treated, according to current standards of care.