This is the perfect diet for those who want to lose weight gradually. In his latest book, Dr Fricker sets out two weight-loss plans, whic work at different speeds. The quickest of the two is the HSD (High Speed Diet), which only cuts out slow-release sugars. Leaving you free to pig out on roast chicken of a Sunday, without feeling guilty.

An HSD day:
Breakfast:
-200g fat-free fromage frais
-A fat-free plain yoghurt
-A piece of fruit, not juice
Lunch and Dinner:
-Starter: salad or fat-free vegetable soup
-Main course: as a salad or warm meal = 200g fish, 150g meat or four eggs. At least 200g vegetables, with a tablespoon of olive oil (10g).
-Dessert: a yoghurt, or piece of fruit

it will take longer to see the results with this diet, and you need to have patience to stick to it. Don't worry if you don't lose as much as you want to, this is a diet which can last for as long as six months.