Dd who is 7.5 (AS and Adhd) has been really playing up lately and I can only really link it to oranges.
When we went to Bibic they said to avoid oranges as they can cause hyperactivity and we did avoid them for ages. The past year or so they have come back into our diets.
Dd craves citrus, sucks on lemons, limes and if allowed (well when we are not looking) would eat the orange and the skin.
If it is the orange would 1 orange really cause her behaviour to change all day.
I can def. see links with oranges and hyperactivity.