The 40-year-old took to Twitter to share his thoughts on his meager dinner of "boiled eggs without salt".
"Having boiled eggs without salt after so much of action and dance since morning. Wish I could eat everything I wished ... But (I) can't," Sonu posted on the microblogging website Sunday night.
Sonu is busy shooting for Farah Khan's star-studded "Happy New Year". The film's cast includes names like Shah Rukh Khan, Deepika Padukone, Abhishek Bachchan, and Boman Irani.