December can be a frantic month of socialising. From strategic power naps to healthy snacks, here's how to get out the other side unscathed Nutritionist Kerry Torrens advocates a filling and sugar-stabilising breakfast, such as porridge, if you are heading out in the evening. Starting the day with a generous breakfast can help control your appetite later in the day. She recommends adding a dollop of probiotic yoghurt to help boost immunity.