Talking to children about weight can be a difficult thing to do.

With one in four children in Ireland either overweight or obese, what's the best way for parents to approach the subject if they have concerns?

While it's normal for children to gain some weight around puberty, and genetics can also play a part, dietitian Sarah Keogh from EatWell.ie says eating habits and physical activity should be looked at.

Sarah says it's important for parents not to make their child feel upset, different or bad, and suggests looking at family habits instead of singling out the child.

Dr Malie Coyne, a clinical child psychologist, says too much screen time can have a major impact on weight, as children are more likely to snack during this time. Ongoing research shows that lack of sleep is also detrimental.

Malie adds that children with weight issues are prone to bullying by their peers, and that introducing shame and criticism to a conversation about weight can significantly impact a child's self-esteem.

Listen to the interview in full by pressing the play button on this page.