The alert comes from industry specialist Kasia Krieger as hundreds of schools and colleges prepare to boost their catering teams ahead of the new academic year starting in September.
The Government is reviewing the School Food Standards for the first time since 2014.
The charity also delivered a petition to Downing Street containing over 1,300 individual messages from pupils at Magic Breakfast partner schools.
The three-year £1.6m study is funded by UK Research and Innovation (UKRI) as part of its work to create opportunities and improve outcomes.
The School Chef Training programme covers everything from skills in the kitchen to the basics of nutrition as well as how to cut waste, cope with rising food prices and to meet the school food stan
The free breakfast club programme is one of the Department for Education's flagship policies, central to the Government's mission to break down barriers to opportunity for every child.
Building on a successful partnership which began in 2019, the renewed contract won via pre-empt tender will see Chartwells Independent continue to provide nutritious school meals to over 2,700 pupi
School caterers are having to cut down on portion sizes and adjust menus to counteract rising costs.
According to the research breakfast habits are a concern, with nearly a third (29%) of parents saying their child skips breakfast at least three times during the school week.