New Delhi, July 15 -- Ever since Erling Haaland gave a breakdown of the 'ancestral' diet that fuels one of football's most lethal strikers, social media has been flooded with people wondering whether the secret to elite performance lies on his plate. At 41, Cristiano Ronaldo's eating habits are an inspiration to footballers and beyond. No cheat days and a daily diet of grilled chicken, fish, eggs, fresh vegetables, healthy fats such as avocado and disciplined meal timings. The diet of Sunil Chhetri - India's most decorated footballer - has evolved over two decades. Having switched to a vegetarian diet nearly eight years ago on medical advice to aid recovery, the 41-year-old believes there is no one-size-fits-all formula. "There are many way...