“Nobody can quantify for you what's the impact of eating fiber every day, for instance. We can say we think it's good. But some people might say 'Oh, it reduces your risk of colon cancer by 20%, some people might say it reduces your risk by 25%.'”

Anne Wojcicki is a Silicon Valley entrepreneur and philanthropist. She co-founded 23andMe, a company pioneering genetic testing and personalized health data, and later launched Verily, a life sciences research arm of Alphabet. Her work centers on merging technology with medicine to advance preventive healthcare and genetic research.