DD1 was born at term, average weight. Looking back at pictures, she had nice full cheeks as a toddler and didn't seem thin. Gradually as she was more mobile she thinned down. For the last few years she hovered on the 9th- 25th centile for weight. She was referred to a dietician last year, who prescribed pediasure milk shakes which I knew she wouldn't touch, but she promised the dietician she wild drink them.
I weighed her yesterday and she weighs 21.2kg. She is 127 cm tall. It puts her on the 1st centile for BMI. Her sisters are 70th and 48th centile.
She doesn't eat enough. She prefers soft textures and would live on sandwiches if she could.
She actually eats breakfast quite well and school says she eats lunch quite well, but dinner is often a disaster. I think it's because by that point in the day she's used all her energy (she has slightly low muscle tone and is malco-ordinated).
When does a child's weight become a concern clinically and what is done? What can I do to increase it?