Some 92 per cent of parents back the introduction of food standards for all schools.
Research carried out by the Local Authorities Caters Association (LACA) and ParentPay has discovered there is overwhelming support for nutritional guidelines to be introduced for learning centres, whether they are state maintained, academies or free schools.
More than 12,000 people were surveyed and only 57 per cent knew if the their child's school was following the advice issued by the government.
Jamie Oliver, who produced a School Meal Manifesto, noted it is "blatantly clear" from the findings how parents view the health of their offspring.
He added education secretary Michael Gove should take the results on board and do "something positive with the data".
Anne Bull, LACA National Chair said: "This increase gives a significant indication of the level of importance parents place on both their children's health and wellbeing and the provision of healthy, nutritious food in their children's schools."
She went on to note there should be policies introduced to support the wishes of mums and dads in the country.