"Don't play with your food". It is a popular saying that grandparents and parents have traditionally addressed to children to scold them when they refuse to eat. It comes from a time when people went hungry, and it has survived in the collective imagination. In many parts of the world malnutrition persists. In our country there are pockets of poverty which struggle to maintain a proper diet that paradoxically coexist with food waste –it happens in many homes, and also in restaurants and supermarkets–. Two contradictory realities. To this we have to add that the predominant diet in the first world is based on a strong consumption of meat and other types of food whose production produces unsustainable ecological stress. This model has a very relevant effect on the climate crisis, in such a way that global industrial livestock and agriculture, and the massive intercontinental transport of the goods they produce, are largely responsible for the excess of CO₂ we emit into the atmosphere