Allison and Stephen Ellsworth built Poppi from nothing and sold it to PepsiCo for just under $2 billion last year. They told Business Insider this week about the risks they took and sacrifices they made along the way, and shared how they're stopping their newfound wealth from spoiling their children . Allison was experimenting with home remedies for her stomach pains and skin issues in 2016 when she turned to apple cider vinegar. She couldn't stand the taste so she tried mixing it with