Does anyone else have a child who is super sensitive to sugar? DD4, nearly 5, has a reasonable diet, but whenever she has refined sugar in any form, be it an ice cream on holiday, a lick of the bowl when baking or a biscuit etc it's like you light the blue touch paper. Within minutes she's off her head, running madly around on some sort of high. An hour later and she's crashed and grumpy.
Is her reaction really extreme?