Avocados, despite being high-calorie, help you on your weight management journey. Monounsaturated fats, like oleic acid, promote fat burning and reduce fat storage. The combination of both soluble and insoluble fibre, and healthy fats, keeps you feeling full for longer periods. Cut avocados quickly turn brown. If you’re using just half an avocado at a time, brush the rest with lemon juice. You could also store the remaining half with the pit still in it, wrap it with a plastic wrap tightly, and keep in the refrigerator.