Actor Varun Dhawan stopped drinking morning black coffee due to gut issues. Nutritionist Prashant Desai disagreed, stating it's not universally true. Dhawan acknowledged individual differences but sought advice from Desai. Dhawan's upcoming film, 'Baby John', an action drama, will release on Christmas Day, co-starring Wamiqa Gabbi, Keerthy Suresh, and Jackie Shroff.