(Answered) Beginning in the 1950s, the average U.S. diets have shifted to include more processed foods. A…

➤ Why do processed foods often offer greater food safety and stability?
Processing methods like pasteurization, canning, vacuum-sealing, and controlled-atmosphere packaging reduce bacterial contamination and spoilage. Preservatives and freezing stabilize nutrients and extend shelf life. These practices lower foodborne illness risk, support longer supply chains, and make safe foods more accessible in regions with limited refrigeration or fresh-produce supply.