goldengirl101 said:
OK, girls. I debated posting this or not. So here goes. (Don't yell too much)
My understanding is that in order to lose weight, you need to expend more calories than you consume, right?
So why is it that a diet with 1700 cal/day would be better than 1200?
And, what difference does it make what type of foods the 1700 calories come from ?
Think of your body like a fine-tuned Maserati. You spend all this crazy money getting this amazing car. You keep it shiny clean. Then you throw some mud in the gas tank. It aint' gonna run like it should. You want to give it exactly what it needs to run optimally. Your body is an amazing biochemical machine where everything it does is governed by a series of complementary biochemical reactions.
Feed it just enough to help it find the optimal burn rate for "your" metabolism, your activity rate and your recovery rate. If you don't feed it enough, it will slow down, activitating a primal surivival mechanism that slows down your metabolism because it thinks it entered a starvation period (e.g. a drought season) to preserve the energy sources (fat) that you already have stored. Feed it too much and it will get sluggish. It won't be able to burn all the fuel, so it gets stored as fat.
Say you eat 1700 cals of Ben & Jerry's. After a couple weeks of that, your body will realize it is nutritionally starved and won't run so good. You won't have energy, you'll probably be tired all day, possibly thirsty and just not all that great feeling anymore. With these fads of low-fat & low-carb, you can conceivably still be nutritionally starved by not getting the good carbs & fats that you need and further getting more the shit they process these foods w/ to make them edible.
If you eat say 1200 cals, sure you'll lose some weight - probably both fat and muscle -as the number you see on the scale is a measure of your bone, fat, muscle and I guess you can include water in there too. Probably your bone mass is static, but your muscle mass, fat mass and water can fluctuate all over the place (e.g. 5-8 lb change due to water retention during "that time of the month"). So at 1200 cals, you'll lose weight. But then it will eventually start slowing down when your body realizes it isn't getting enough to efficiently run on and assumes starvation mode. That's when peopel get all freaked out that they aren't losing weight anymore, get frustrated and either cut out more food or else start eating everything in sight for a nice big blow up.
You want to set up a nice efficient burn rate for your body. Feed it just about what it can metabolise in one 2-3 hr session - e.g. some numbers claim women can metabolize 35 g protien in 2 hrs. Your body can metabolize first carbs in 2 hrs or less, proteins in about 2 hrs, and fats in 2-3 hours. Thus the idea of eatign every 2-3 hours. So if you eat something like 4 oz chicken as your protein source for Meal 2, you will want to refuel for the next 3 hr run but no more than that.
Carbs & fats - I've seen a thousand different ways to determien how much of these you want. But generally you want to put the carbs when you need the kick, e.g. first thing in the morning (e.g. meal 1 = 4 oz ground lean turkey for 35 g protien + 1/2 c oatmeal for about 30 g complex carb). Or after training to restore depleted energy stores. Fats you need to put in somehwere because they are good for you & a necessary part of a balanced diet. I'd put them at the points where I have to go a bit longer than 2 hrs between meals, e.g. mid afternoon when my boss schedules never-ending conference calls. The fat will help slow down the metatbolism rate of that meal. Another time is before bed - your last meal of the day and another 7-8 hrs before you will eat again. Helps delay the point where you might start feelign hungry int he middle of the night.