I know that the Skittles in the US contain gelatin, but do the UK ones? I'm 99.9% positive that I read UK skittles do NOT contain gelatin and are veggi-friendly. Also, are M&Ms suitable for vegetarians?

UK skittles contain no gelatin. I get my boyfriend to ship them over to me every now and then :) M&Ms contain milk ingredients. If you consume milk products, then I believe they're on the menu for you.