Just a quick note to all.
I travel for a living and have many family members who are celiacs, so I always have to check what I buy them.
If you travel abroad be aware that some m&ms are not gluten free. M&ms in Australia are Not gluten-free and it is as easy as checking the packet.
So far I know that m&m's in the USA, Singapore and the UK are all gluten free. (This specifically applies to plain and peanut m&ms only)