“…The studies used a variety of strategies to modify dietary intake. The approaches included dietary counselling [ 35 , 36 , 37 , 44 , 45 , 51 ], the American Diabetes Association (ADA) diet [ 38 ], diet-focused behaviour change goals (e.g., to limit junk food intake) [ 39 ], a low-carbohydrate diet [ 40 ], an energy-restrictive diet [ 41 , 43 , 46 , 47 , 48 ], a low-GI/high-fibre diet [ 49 ], decrease in calorie-dense foods and increase in fruit and vegetables [ 50 ], access to the MyPyramid website [ 42 ] and educational kits which focused on dietary habits, including portion sizes, fruit and vegetable intake, nutritious snacks and reading food labels [ 52 ]. Of the 13 trials which included a physical activity component, strategies to modify activity included advice to exercise daily for 30 min per day or a step count [ 36 , 45 ], exercise classes [ 37 , 42 , 48 , 50 ], weekly exercise goals of 150 min per week [ 38 , 43 , 49 ] and daily walking [ 35 , 39 , 41 , 46 ].…”