Fianna Fáil's Justice, Child and Youth Affairs spokesperson warned that childhood obesity in Ireland is likely to rise without State intervention.
Senator Lorraine Clifford-Lee said it is important to target more resources in lower socio-economic schools and communities to prevent the problem getting worse.
Earlier this week it was followed by the latest Growing Up study in Ireland. This showed that 22% of Irish nine-year-olds were overweight or obese.
The study, conducted by ESRI and Trinity College Dublin, found that only one fourth of nine-year-olds had reached the recommended physical activity level of at least 60 minutes per day.
The survey followed more than 7,500 children and their families, showing that most children were healthy, but 17% were overweight and 5% were obese.
Senator Clifford-Lee also said that parents should take the responsibility to make an example and encourage children to make healthy choices.