Corporate social responsibility, abbreviated CSR, is the principle that businesses should behave in socially, environmentally, and financially responsible ways beyond legal minimums. In food, it covers fair labour practices, sustainable sourcing, animal welfare, reduced packaging, community engagement, and transparent reporting. Major companies publish CSR reports and set targets on emissions, waste, and nutrition, responding to consumer and investor pressure. Critics warn of greenwashing, where glossy claims outrun genuine change, and argue for regulation over voluntarism. Done sincerely, CSR aligns commercial success with the public good; done cynically, it is marketing in a moral costume.