Hi, Thanks for writing in. An adult male requires 2000 kcal diet. This should contain balanced amount of proteins, carbohydrates and fats. Your father can follow a sample daily diet chart is as follows Early Morning A cup of tea/ milk with 2 biscuits of your choice Breakfast 2 parathas with curd or 2 plain rotis with paneer or 2 idlis with chutney/sambhar or 1 bowl of upma or oats Mid morning Soup or a whole fruit (apple or guava) Lunch Salad with rotis (2 to 3) or rice (1 bowl) with dal/ sambhar and a cup of vegetable. Occasionally you can add some light fries in lunch. You can add two vegetables every day. Afternoon Tea/ juice with 2 biscuits Dinner Same as in lunch with slight variation. Dinner should be lighter than lunch Milk after dinner He should take iron and vitamin supplement If kidney stones are normal and there is no obstruction in the kidneys then there is no problem. Please do not worry.