The Programme, week 5: Sarah's comments

I have been so focused and good it's untrue. My detox is making me feel really energetic and I've been working out a lot. It's slightly limiting to cut out carbohydrates at lunchtime because most of the things on offer are things like sandwiches and jacket potatoes. I have to eat a lot of salads, fruit and sushi, all of which is getting very expensive. But I'm feeling amazing.

I can't believe the change. My tummy feels flatter and my clothes feel looser. I'm exercising four times a week, alternating between swimming and gym. And the best bit is I've lost weight. I can't believe I've only got two more weeks left. I really want to carry on with this programme.