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Study Reveals Parental Smoking and Childhood Obesity Link Transcends Socio-Economic Boundaries

A study into parental smoking and childhood obesity has challenged previous notions by revealing that the links between the two are not confined to a specific socio-economic group.

The data shows a strong correlation between parents who smoke and their children’s consumption of high calorie unhealthy foods and drinks, across social classes.

Using longitudinal data on 5,000 Australian children collected over a 10-year period, the research found those living with parents who smoke, on average, eat less healthy, higher calorie food such as fruit juice, sausages, fries, snacks, full fat milk products and soft drinks.

Lead researcher Dr Preety Srivastava said the findings are a reminder that obesity is an issue across all classes and social groups.

Preety Srivastava said it was important to understand that parental smoking had a greater potential impact than just the risks of passive smoke exposure. Another significant way that smoking affects children’s health is through parents’ role in modelling dietary behaviours to their kids.

“Previous studies show that compared to non-smokers, smokers have a higher preference for high energy and high fat foods due to the loss of taste sensitivity caused by nicotine and other chemicals found in cigarettes.

“In households where either or both parents smoke, children are exposed to more of these ‘high flavour’ foods possibly due to the altered taste preference of their parents.”

Although the bulk of evidence shows that low-socioeconomic families experience higher risks of obesity and smoking than other groups, the research found the link between parental smoking and childhood obesity to be prevalent across socio-economic classes.

“Our findings underscore the need for tobacco control measures that help parents quit smoking or reduce their tobacco use as doing so can have positive spill-over effects on family health behaviours, including dietary choices and physical activity.

“Obesity can have negative emotional and social impacts on children, such as low self-esteem and increased rates of being bullied and socially excluded with further adverse consequences on academic performance and long-term employment opportunities.

“It is important policymakers, healthcare professionals, educators and parents collaborate to address the root causes of childhood obesity.”


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