
Originally Posted by
gbrice75
This may be obvious to alot of you, but for new members who don't really know the ropes of dieting, and who don't understand caloric balance, this might be handy.
We can all agree on what TDEE is. This is your maintenance calories. If you eat at your TDEE (let's use 2500 calories as an example), you should neither gain nor lose weight. Based on your goals, you either eat above or below, depending on whether you are bulking or cutting.
What I want to specifically address is huge caloric deficits via diet vs. other methods to create the deficit, namely cardio. I have seen too many recent diets posted where the deficit was too great, some over 1000 calories below maintenance.
Let's take our example of a 2500 calorie TDEE. You can eat 2000 calories/day and you have effectively cut 500 calories from your diet. That's great for people who aren't concerned with how their bodies look, and are just interested in 'losing weight'. WE in this game are interested in burning bodyfat, and preserving LBM as much as possible while on a cut. IMO, there is a better way...
Less deficit via diet, more via cardio. In this example, let's only drop our calories by 100, so we're now eating 2400 calories/day. Not a huge deficit at all, and wouldn't do much alone - it would take forever to lose any appreciable amount of bodyfat. However, when you introduce cardio, the game changes. I believe you can use cardio to create an even BIGGER deficit then our original example, yet burn more bodyfat AND preserve more LBM. Why? Well first, you have to make sure the cardio is optimized for burning bodyfat. You cannot run for a half hour at 8.0 on the treadmill and expect great results. You will undoubtedly burn LBM, as well as some bodyfat. But moderate intensity cardio with some high intensity intervals thrown in (not to be confused with true HIIT, see Baseline's thread on this), you can make your body very efficient at burning bodyfat while preserving LBM.
Remember that you are still eating very close to maintenance, so your body is getting the nutrients and fuel it needs to function optimally. This keeps your metabolism fired up, keeps your body in a constant state of processing, and with the added cardio, that gets magnified even more. In our first example, you were not only cutting calories, but think of it as fuel as a whole - including all of the vital nutrients. You were robbing your body, essentially taking the 'easy' way out. Add the same cardio routine in the example above to an already large caloric deficit, and you are just asking your body to torch LBM.
So IMO, a small deficit (or even eating AT maintenance) with optimized cardio > larger deficit. In short, rely on cardio over calorie restriction. This isn't weight watcher's guys!