I was challenged to see how much weight I could gain if I drank a 15,000 calorie shake each night before bed while gorging myself during the days to the best of my ability for 5 days in a row. I'm never one to turn down a challenge, so I accepted! Today is Day 1 of the challenge. I start the challenge off with a weigh-in to see what my starting weight is. After weighing in, I chug a bottle of chocolate weight gain shake followed by a bottle of caramel weight gain shake. Together, they total approximately 15,000 calories. I'm stuffed and bloated. I can't wait for Day 2!