Hey I rate cereal, I think I cost hubby a small fortunate last pregnancy as ate cereal 3 times a day every day, that was after the main course of course!!
I put on a fair amount by the end, 3 stone BUT by 6 weeks it had all gone and then some!! So I think cereal can take the credit for that, well cereal and breastfeeding!
Go eat some, and enjoy it! There's much worse things you could be eating a tonne of xxx