The Princess of Wales reportedly has the same thing for breakfast each morning, and a nutrition expert has explained why it is a great way to stay slim or lose weight.
Kate is also said to follow a consistent workout routine and likes to practice cardio training, weight lifting, cycling, rowing and yoga. She is also a keen runner but her favourite sport is tennis, the Express reports.
The Princess of Wales is believed to start each day with porridge and according to experts at Healthline, oats have many benefits - including weight loss - as they explained that they are "among the healthiest grains on earth" and are "also very filling".