That’s the implication of a recent BMJ study:
The relationship between divorces and obesity was mind-boggling: compared to children with married parents, individuals whose parents were divorced had a 54 percent higher probability of being overweight and were 89 percent more likely to be abdominally obese. … In the paper, the authors speculate that divorces may cause obesity by negatively changing the daily life of the child. Since divorced parents generally have less time to spend on domestic tasks than do married couples, they argue, a split-up may lead healthier home-cooked meals to be replaced by ready-to-eat food, which tends to be heavier on calories. This negative effect on the child’s food habits might then be exacerbated through a loss in income for the household that results from the divorce, which would be in line with the body of research that links obesity to poverty.
The Dish 