Well, everyone should lose weight. Apples should be eaten half an hour before meals. Yogurt should be eaten after meals. Apples have to be eaten before meals to feel full, so you can't eat too much. Yogurt is used to digest food, but don't. If you eat normally, apples and yogurt will not be delayed, so they will not lose weight, but will only gain weight. Reasonable sports collocation will get twice the result with half the effort. But still in good health.