My recommendation is to start using myfitnesspal or the nutritionist to start tracking what you are eating now. Don't change a think at first just input what you eat so you get an average calorie total.
Then take those calories and come up with your macros. 1 gram of protein per lb of body weight is a good benchmark. So 260 grams of protein x 4 calories/gram is 1,040 calories. Fill in the rest with healthy fats and good quality carbs. 65-75 grams of fat might be a good starting point per day.
Make adjustments as needed but know what you are eating and be consistent.
All American EFX Rep
Natural Freak for Life