Dave Asprey (born October 30, 1972) is an American entrepreneur and author. He founded Bulletproof 360, Inc. in 2013, and in 2017, founded Bulletproof Nutrition Inc. He has written five books. Men's Health described Asprey as a "lifestyle guru.". Asprey is a "biohacker," creator of 'Bulletproof Coffee' and the 'Bulletproof diet', and author of a book describing the diet.