Here is my suggestion, first start off by avoiding fatty foods, you know those foods that are greasy or oily.(fried foods) and also avoid frozen meats and processed foods. Such as hotdogs, and etc. Now, while doing that start eating fruits and vegetables. Specially the green and leafy ones. Also avoid sodas. After that start doing workouts and exercises every single day. And also avoid salty and sweet foods. And do not smoke nor drink alcohol. That's all. :-)