Disclaimer: This summary is based on research conducted by Autism Treatment Network (ATN) members. It is not a summary of the entire body of research literature available on this subject.

Disclaimer: This summary is based on research conducted by Autism Treatment Network (ATN) members. It is not a summary of the entire body of research literature available on this subject.
Researchers in the ATN/ AIR-P found that more kids with autism were obese (were heavier than a healthy weight) than kids without autism [1]. Kids with autism often weigh too much earlier in life than kids without autism [2]. This could mean that there are different reasons for gaining weight in kids with and without autism. It is important to understand how to keep kids with autism from becoming too heavy and to take care of health risks from weighing too much [3]. One reason kids with autism may be gaining weight is medications that address behavioral or social problems. A medicine called metformin may help kids who take these medications not gain as much weight [4] [5]. Also kids with autism often get less physical activity (playing, running, climbing, walking, etc.) than kids without autism [6]. More physical activity in general may help kids with autism get to and stay at a healthy weight.
Frequently Asked Questions
IS THERE A LINK BETWEEN OBESITY AND AUTISM?
- More children with autism are obese (heavier than a healthy weight) than children without autism [1].
- Children with autism often weigh too much earlier in life [2].
WHY IS THIS HAPPENING?
- Some medications that are used to help with social and behavior problems can cause kids to gain weight [4] [5].
- Kids with autism often get less physical activity than kids without autism[6].
WHAT CAN PARENTS DO TO HELP?
- Make sure all children get at least some physical activity every day – running, climbing, jumping, walking, playing, etc [6].
- Be aware of what a healthy weight is for their child.
WHAT CAN HEALTH CARE PROVIDERS DO TO HELP?
- Metformin can help kids who take medications that cause weight gain to not gain as much weight [4] [5].
- Talk to families about the side effects of medications and if weight gain is a side effect, help the family monitor the child’s weight on a regular basis.
- Help the families understand how to keep kids with autism from becoming too heavy and take care of the risks of weighing too much [3].
References
- de Vinck-Baroody O, Shui AM, Macklin EA, Hyman SL, Leventhal JM, Weitzman C. Overweight and Obesity in a Sample of Children With Autism Spectrum Disorder. Academic Pediatrics . 2015 ;15(4):396-404.
- Presmanes Hill A, Zuckerman KE, Fombonne E. Obesity and Autism. Pediatrics. 2015 ;:peds–2015.
- Zuckerman KE, Presmanes Hill A, Guion K, Voltolina L, Fombonne E. Overweight and Obesity: Prevalence and Correlates in a Large Clinical Sample of Children with Autism Spectrum Disorder. Journal of Autism and Developmental Disorders. 2014 ;:1-12.
- Anagnostou E, Aman MG, Handen BL, Sanders KB, Shui AM, Hollway JA, et al.. Metformin for treatment of overweight induced by atypical antipsychotic medication in young people with autism spectrum disorder: a randomized clinical trial. JAMA Psychiatry. 2016 ;73:928–937.
- Handen BL, Anagnostou E, Aman MG, Sanders KB, Chan J, Hollway JA, et al.. A randomized, placebo controlled trial of metformin for the treatment of overweight induced by antipsychotic medication in young people with ASD: Open-label extension. Journal of the American Academy of Child and Adolescent Psychiatry. 2017 ;.
- Neumeyer AM, Sokoloff NCano, McDonnell E, Macklin EA, McDougle CJ, Misra M. Bone Accrual in Males with Autism Spectrum Disorder. Pediatrics. 2016 ;181:195–201.