I'm glad they put that part in about the birthday candles, I wasn't to keen on eating something that was flammable.
You do realize most food is flammable right?

In fact pretty much ALL food is flammable. The process by which the body gets energy from food is remarkably similar, chemically, to combustion.

Fuel + oxygen ----energy released---> carbon dioxide + water

Try lighting, say, a corn flake on fire. They burn really well! ;)