I have this under the "myths" - with a justification: We nurses used to say this so that you patients would leave us your chocolate gifts. Always gets a laugh - and as it usually has been at the end of a series of "can you eat...." series of questions, it's a good way to get people to RELAX. Of course there are some babies that are sensitive to this as to any food product - especially "milk" chocolate - or the caffeine it contains. Luckily for me, my kids did fine even though I love M & M's. Jeanette