Thanks for your question on Healthcare Magic. I can understand your concern. Tuberculosis infection is mostly due to poor immunity. So patient should take diet which boost his/her immunity. So give your child high protein diet like pulses, eggs and non vegetarian foods. Give him fruits and vegetables more because they are rich in antioxidants. Better to avoid oily and spicy food, avoid junk food. Don t worry, he will be alright with appropriate diet and treatment. Hope I have solved your query. I will be happy to help you further. Wishing good health to your son. Thanks.