Presto! How I made Over 100 Pounds Disappear (YouTube, 39 mins, 2016) is an entertaining & informative talk by Penn Jillette. Penn lost a large amount of weight and transitioned into whole food, plant-based diet. In his own words, he consumes "no animal products, no refined grains, extremely low (salt, sugar, fat)".

Penn is a famous magician from Las Vegas — he is the "Penn" in Penn and Teller duo who have performed together since 1970s.

Penn's 39-min talk at Google is really good. It's entertaining! Beware that he uses 'F' words every once in a while which may put some people off. In the talk, he's down to earth and real. And he makes a series of important points in the talk for which I'm telling my friends to watch it. One of the first things Penn emphasizes is 'strict adherence'. At another point of time, he describes the emotional changes he experienced when he lost weight. He also explains how his taste buds changed and how he socializes. On the whole, I loved this talk! Very entertaining and informative.