The high protein diet (25% energy from protein, 55% energy from fat, 20% energy from carbohydrate) will be hypo-caloric and achieved by restricting the amount of sugar containing foods and drinks, reducing the intake of bread, rice, pasta, fruits and fruit-juices and increasing the intake of vegetables (instead of bread, rice, pasta and potatoes) and increasing the amounts of protein (from chicken, fish, and meat) and fat from oil and dressings for lunch and dinner and by choosing nuts and protein-rich yoghurts, egg, cheese, chicken wings, shellfish, fish and fish products as snacks.

The low fat diet (30% energy from fat, 20% energy from protein, 50% energy percent from carbohydrate) will be hypo-caloric and achieved by choosing low-fat diary and meat products, restricting amounts of visible fat and fatty snacks and increasing intake of whole meal bread, muesli, brown rice, whole meal pasta in the main meals and by choosing yoghurt with muesli, oat porridge with milk, fruits and hard bread with jam and soft gout-cheese as snacks.

The High Protein Diet Group was advised to have 25 energy percent from protein, 55 energy percent from fat, 20 energy percent from carbohydrate in the diet and the Low Fat Diet Group was advised to have 30 energy percent from fat, 20 energy percent from protein, 50 energy percent from carbohydrate in the diet.