2yo lost 1kg in 6 weeks

[espanol]

Dd weighed 13kg at 2yr check 6 wks ago. 75th centile weight, 50th for height so perhaps a little on the chubby side. Since then has gone from being a good eater - 3 big meals - to not so good - good breakfast but then just picking at food. This follows mild virus. I noticed the other day that I could see her ribs for first time ever! Weighed her today - 12kg exactly so 1kg loss in 6 weeks. Even allowing for difference in scales this seems a lot - 8% of her body weight.

How worried should I be? Doctors/HV now? Or just watch and see if eating improves, gains weight?

Tbh I would only worry if there were no obvious reason for weight loss. Becoming more picky with food is fairly normal especially following illness. I wouldn't worry unless it continues.

Thanks. She is still 'robust' and full of energy so I'm not too worried at the moment. Will focus on her diet for a bit - make sure what she does eat is high energy and nutritious! Then check weight again in a few weeks.