To approach dietary changes sustainably, start by setting realistic goals and gradually incorporating healthier foods into your routine. Focus on a balanced diet rich in whole foods, such as fruits, vegetables, whole grains, and lean proteins. It’s crucial to listen to your body’s hunger and fullness cues, and experiment with new recipes to keep meals exciting. Meal planning can also help reduce food waste and ensure nutritious choices. Lastly, consider the environmental impact of your food choices, aiming for local and seasonal options where possible to support sustainability in your community.