Something big has happened for children in Mexico this year. On March 29th, guidelines went into effect that were put forward by President Sheinbaum on the preparation, distribution and sale of food in schools throughout the country. The new guidelines prohibit the sale of so-called junk food — food that is highly processed, highly sweetened and high in fat.

Even though schools are implementing the new rules, and school programs and curricula have long recommended nutritious foods that promote health, the guidelines remain controversial. After all, neoliberal governments for years promoted junk food in schools as a quick and convenient alternative for the children, and it’s often difficult for children and their parents to change their habits.

President Sheinbaum loves children and believes that changing their eating habits is critical for their health and growth.

Recently, some children who were upset demanded that President Sheinbaum explain why their schools had removed comida chatarra. Their complaint is actually understandable. Junk foods can produce a feeling of well-being and satisfaction because they stimulate the production of dopamine, a neurotransmitter that produces pleasure, relaxation and a sense of well-being. Which is to say, these “foods” are actually addictive.

But “quick and convenient” foods have been harmful to the nation’s health. Decades of poor nutrition have generated high rates of obesity and diabetes, including among children. We hope Dr. Claudia Sheinbaum continues to implement the new measures and that the schools find healthful, affordable and easy-to-prepare food for all their children.