Muscle and Body Fat in Williams Syndrome

Body composition refers to how much fat and muscle a person has, and where it is distributed in the body. Children with WS tend to be thin. Sometimes adults with WS are also thin, but some adults may gain weight, especially in their belly, hips or legs. It is healthy and normal for everyone to have some body fat, including those with and without WS.

Doctors are not sure what makes some people store different levels of body fat. It is important for everyone with WS to keep as active as possible. For children, this can include playing and taking part in active sports or physical activities. Early participation can help your child develop lifelong active habits.

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Rev. 8/2019. MassGeneral Hospital for Children and Massachusetts General Hospital do not endorse any of the brands listed on this handout. This handout is intended to provide health information so that you can be better informed. It is not a substitute for medical advice and should not be used to treatment of any medical conditions.