Most of you are probably wondering, "What the heck is propylene glycol?" Propylene glycol may sound fancy and scientific, but it's really just a clear, odorless liquid made from petroleum. It's used as a stabilizer (to keep things held together, and keep them from evaporating), and to keep foods moist. It's used in many of the foods that we eat, and the FDA deems it safe for human consumption. Sounds harmless enough, right? But I stumbled upon a little something that you may not know about propylene glycol.
I promise this is the only other scientific word I will use: ketosis. Ketosis is simply a fancy medical term for when your body burns fat. So if you're overweight and you start to lose fat, it's called ketosis. I'm sure most of us can agree that ketosis is a good thing — especially here in America, where we have the most overweight population on the planet.