One theory is if you give them too big a serve the get overwhelmed and won’t eat.
Another is the position of their legs and feet on the chair they are sitting on. They have found that little legs and feet that aren’t supported comfortably get “pins & needles” or cramps so they just want to get down off whatever they are sitting on. Only give children the size meal you know they will eat. If they go to daycare check what they have eaten during the day. If they’ve eaten a lot there they may not want much tea at night, The same applies if they have been fed by another person during the day. We were never allowed snacks just before meals.
Published 23rd April 2019