Pay attention to your child’s advertised diet — to all the foods they see advertised — and realise how unhealthy it is.

The Government is being urged to clamp down on digital marketing of junk food as a new report reveals food and beverage firms are using Facebook to market unhealthy products to children.

Young children who are particularly susceptible to advertising are subjected to more than 1,000 television ads per year promoting unhealthy food, experts have warned.

Pre-school children can identify Coca-Cola and Coco Pops far more readily than Actimel or cheese strings even though similar TV advertising time is devoted to each of these brands, according to research.