my doctor advised me to follow this eating pattern some time ago so for what its worth yhis is what i eat.
breakfast---cereal/porridge or fruit or toast.
mid morning-a banana and/or small snack bar
lunch -main meal of day(if possible)
mid afternoon- 1 fruit or pot yogurt or milk shake or cupa soup
dinner- lighter meal
supper or mid evening snack--bowl of soup or a banana or other fruit or 2/3 bisciuts
this has resulted in weight loss and me feeling fitter but its important not to eat more than you would on a three meal regime.