Poppi founder Allison Ellsworth on building a billion-dollar soda business​Poppi founder Allison Ellsworth on building a billion-dollar soda business 

 Allison Ellsworth, the founder of the viral soda brand Poppi, sits down with NBC News’ Savannah Sellers to discuss how she turned a personal health issue into a billion-dollar cultural phenomenon.  ​​Allison Ellsworth, the founder of the viral soda brand Poppi, sits down with NBC News’ Savannah Sellers to discuss how she turned a personal health issue into a billion-dollar cultural phenomenon.