I dont understand the eat more weigh less at all

Eating more to weigh less will positively affect those people that are currently eating too little. Basically, your body NEEDS certain nutrition in order to function properly. Without that nutrition, it can't do things normally.

For example...

Say my body NEEDS 100g of protein a day and will spend 1000 calories utilizing that protein (repairing cells, etc). But, I decide to go way under my calorie needs by 200 and reduce my protein by half in doing so. Now my body gets 50g of protein and spends 500 calories using it. So, I am getting 200 less calories, but using 500 less... so that's a 300 calorie surplus, which is NOT what you want for weight loss!

These numbers are completely made up, as I do not know the actual amount of calories it takes to utilize each gram of protein properly.

As well, if you don't get the protein you need, your body DOES have stores of it! Your muscles. It will break down your muscles very quickly to use the protein there to fuel cell repair. As having a properly functioning kidney and heart matter MUCH more to your body than lifting an extra couple of pounds in the gym.

Anyway, it is much more complex than I am stating here, I am just trying to make it easy to understand. In doing so, I may have misstated something.

female
5'3"
39
173
4-5 hours a week cardio and weights

Your sedentary daily energy expenditure is around 1650 calories, 5 hours a week of exercise say another 1850 per week or 265 per day. Estimated burn rate TDEE averages about 1900, let's say 1700 - 2100 given the inaccuracies built in to all this.

So if you eat 1600 you should see progress, at a modest rate. How would that sound ? The all American diet would put you at 200g of carbs (50%) 100g of protein (25%) and 44g of fats.

You have to eat enough calories a day otherwise your body goes into starvation mode and starts storing fat. Too few calories causes your body's metabolism to slow down, making it hard to burn calories.

> sigh <