Low Calorie Programmes provide 800-1200 kcal per day and are made up of formula diets and 'normal' foods.

Most of the intake is from formula diets with the provision for a main meal of 'normal' foods made according to precise instructions to complete the day's intake.

The formula diets are normally a mixture of powders to make into shakes or soups, bars, mueslis, desserts, biscuits and ready to drink products with varying compositional standards.