The famous TV presenter works in her beauty clinic after retirement

Eat well throughout the day. If half of your plate is vegetables and fruit, you're on the right track. Add in lean protein, low-fat dairy, and whole grains. Once a steady eating pattern has been established, your body will feel more comfortable. There may be a period of time when your body is wondering where the sugary foods went, but once you're over the hump, you'll feel better than ever.

• Remember that not all fats are bad for you. Good fats can be found in fish like salmon and tuna, avocados, nuts, and olive oil. These are essential to a well-balanced diet.
• Make an effort to eat regularly timed meals throughout your day. However, avoid grazing all day.