Очень нужна помощь. 5 предложений What questions would you ask a dietitian?

1) Is it OK if I eat after 6 p.m. but go to bed late? 2) Is it allowed to eat dairy food if I want to put off my weight? 3) How many calories should I eat per day in order to keep myself healthy and fit? 4) Are all fruits and vegetables healthy?  5) How do I create a well-balanced diet suitable for my lifestyle and age?