A "slight calorie deficit" is key here, Ivica said, not a huge one. This needs to be a daily calorie amount you can sustain. If you cut too many calories, you'll be too tired to work out, feel hungry all the time, and most likely be constantly thinking about food. What's worse, you'll be more likely to give up. Ivica added, "the process might take longer but you'll find it much more enjoyable and efficient."
You can calculate your calorie deficit by multiplying your bodyweight by 10 to 12. Your caloric intake should fall somewhere within these numbers.
Another way to calculate your calorie deficit is to figure out your TDEE (total daily energy expenditure, which is the number of calories your body burns each day) and subtract 500 calories. Make sure you're always eating more than 1,200 calories each day, even more if you're working out regularly.