American billionaire Bryan Johnson sparked controversy during his India trip by bringing his own food due to concerns about food contamination. His social media post detailing his toxin-free diet, part of his anti-ageing project Blueprint, drew ridicule and memes, but Johnson defended his approach as research-based.American billionaire Bryan Johnson sparked controversy during his India trip by bringing his own food due to concerns about food contamination. His social media post detailing his toxin-free diet, part of his anti-ageing project Blueprint, drew ridicule and memes, but Johnson defended his approach as research-based.