If you survive on coffee and soft drinks to stay awake then you might want to try BioFuel Caffeinated Popcorn. I drink a couple of cups of coffee every morning and this bag just happen to have the same amount of caffiene. Each bag contains 3.5 servings and with 135 calories per serving, the entire bag was about 472 calories. The listed ingredients are simple: Premium Popcorn Kernels, BioFuel Proprietary Blend (sugars, caffeine), canola oil, and salt. When I opened up the bag and began tasting I was amazed that it tasted like a cross between stove-popped popcorn and kettlecorn. It’s sweet, salty, and crunchy. There was a slight bitterness in the aftertaste but after eating an entire bag I totally forgot that it contained caffiene. This is definitely not the kind of popcorn you want to eat before going to bed. BioFuel Caffeinated Popcorn is a great popcorn to have for breakfast or a mid-morning snack. I also like the resealable retro looking package.