New research from natural fruit bar, Fruit Heroes, reveals:   –     86% of parents in Cardiff are concerned about their child’s diet –     60% of Cardiff parents don’t think the UK’s nutritional guidelines for kids are clear –     Guidelines and reports have been so confusing to parents in Cardiff that a staggering 27% (the highest in the UK) think eating fruit is unhealthy –     Almost half of parents in Cardiff don’t know what the 5-a-day guideline is –     84% of…