IIFYM is becoming more and more popular in the fitness world. The IIFYM diet is pretty simple. Eat the right amount of calories in combination with the proper ratios of carbohydrates, proteins, and fats.
The appealing thing about IIFYM is that it allows you to indulge in some of the foods you love. If you are planning to go out with your friends for pizza you can track the carbs, proteins, and fats from your pizza and eat the rest of your meals to keep your macro ratios balanced for the day! AND while you live a little, you can look good...and when I say that, I mean it is possible to maintain the nice abs and toned body that you work so hard for.
SO. How many calories should you be eating? It varies from person to person. One of the best ways to find out how much you should be eating is to experiment. The first place I would start is with your BASAL METABOLIC RATE. Don't go below that number. In fact, you should generally be at least a couple hundred calories above that number (this does depend on your circumstances...hiring a knowledgeable trainer or coach ;) will help you to really dial in on the details).
Next, what should your macro ratios be? Again, this will vary from person to person, and I repeat that the best way to find out what works for you is to experiment. I like to start people off with a 50% carbohydrate, 30% protein, and 20% fat ratio.
What?! You don't like math? Well, my friends...there is an app (website) for that:) and it's free. I use it myself to track what I am eating and it has a really cool feature that breaks your macros into a really pretty little pie chart for you:)
If you think this is something that has potential for you, I hope that my tips can help!