David protein bars hit $300M revenue in year two despite lawsuits, an EPG ingredient controversy, and a Jeffrey Epstein connection involving former chief science officer Peter Atiyah. Founder Peter Rahal explains how innovation creates obstacles but also opportunity, discussing the food science behind his 28g protein, 150-calorie bars and his unconventional marketing philosophy on social media. EPG, a hard fat that resists human digestion, enables David bars to deliver 28 grams of protein with only 150 calories and no sugar by preventing the enzyme lipase from breaking it down.