Food is best guided by dietician. In principle light , low fat, low cab food with high roughage diet is recommended. I can say that some herbal medicines must be started to support the existing treatment and prevention of upcoming complications. Primarily lesser smoking, balancing Pitta humor vitiation, meditation, deep breathing, fresh air walks in a specific sequence should be adopted. This can be done through Ayurveda and not only through diet plans. If you agree to discuss further, pl consult through direct premium question. In any case, at this age, proper decision should be taken to prevent further complications.