Why did nouvelle cuisine favor fresh seasonal ingredients?

Nouvelle cuisine favored fresh, seasonal ingredients primarily as a reaction against the heavy, calorie-laden extravagances of traditional French grande cuisine. By prioritizing the natural flavors, textures, and colors of food, chefs sought to create a lighter, healthier style of cooking that moved away from the reliance on rich sauces, refined starches, and excessive fats.123

This shift was codified in the movement's principles, which explicitly emphasized the use of fresh, quality products and discouraged lengthy cooking times that could mask the integrity of the ingredients. By focusing on the inherent quality of seasonal produce, practitioners of nouvelle cuisine were able to simplify their menus and highlight the clarity of flavor, ultimately elevating the role of the chef to that of a creative artist rather than a mere follower of rigid, traditional rules.231