If there’s no profit in trash food, corporations will go out of their way to provide healthy food

Agreed, but tiny incremental reforms like this one will make corporations shifting to producing healthier food a very, very long drawn out process, during the meantime poor kids will be missing needed calories they may not get elsewhere

The government should enforce much higher foods standards to incentivise companies to move quicky to healthier food production, and marketing of such over junk food

Of course because corporations and oligarchs control the government through funding the major parties and media organisations this will very likely not happen, thus the need for militant revolutionary Socialism, if we want a healthier society and to end to crises such as child poverty and malnutrition any time soon