yes. I do follow some principle when it is a matter of taking diet. There are no hard and fast rules that I follow.
I prefer breakfast very rarely. I take my meals at 10 AM and it will be in small helpings. It generally consists of a veg curry of any vegetable. Any Dal item is a must. A dish made of green leaves also is a must. Finally, my favorite is the Curd. If, there is a ‘miss’ of anything I do not mind but the Curd is a ‘must’ for me. It should have full cream.
For lunch, I prefer a glass of juice. If it is not available I take one or two varieties of fruits in small quantities. Sometimes I even miss it. But, at 3.00 tea is a must for me. I changed it to Green tea instead of normal one. This is a very good one for increasing the immune system of the body. If the boy does not find any fruits he will bring only two Bananas and prepare Green tea for me. I will sometimes bypass the lunch even if the work warrants so.
My lunch will be a little bit different. It consists of vegetable curry with Chapatis or Rotis. Generally, I prefer three. But, the curry will be in more quantity. This much. During night, I take a glass of buttermilk as it is very effective in protecting the joints. It eliminates all gasses in the body. I take buttermilk which resembles the Russian drink KEFIR. There will be more water than curd in it and is like adding only spoons of curd to 3/4 glass of water. I add some ginger and lemon in small quantities.
While taking a meal the only principle I follow is mix the curries more in small helpings.
I do light exercise early in the morning getting up at 5A.M.
During weekends, we go to a good restaurant and there we eat our choice of food items including butter, cheese, and cream. This is a day meant for games and good food.
The only principle that should be followed always is eat proportionate to the work you do.

I did. It’s all there for you.