Is Counting Calories A Good Way To Lose Weight?
The question I'm asking is is are all calories equally fattening, and the answer is no the calorie of brownies are not the same as a calorie of kale it's just not that's just common sense but yet, we tried to pretend that they're the same so if it's not about calories it's really about our hormonal response to those calories which is completely different depending on the different foods that we eat but it depends on a lot of different things calories is a very simple measure, and that's really what is appealing about it because it is not only does it tie together all different foods in a single measure, but you can also tie in things like exercise and these sort of things is very appealing to companies that sell sugary beverages, for example, so they can say okay if you exercise then, it's okay to drink sugar sweetened beverages because you've just exercised there's a fundamental flaw in this whole energy balance equation the energy balance equation says that body fat equal Cal equals calories and minus calories out, so we what we take from that is that we assume that if we simply reduce the number of calories we take in that we're going to reduce our body fat but that's not actually true that's not actually what the equation says so there are actually two parts to it the calories in and calories out.
So the question really is if you reduce your calories taken in to your calories that your body expends stay stable and the answer is no, and we've known this for about a hundred years so, you can look at studies done in 1917 where they take volunteers, and they reduced the number of calories that they eat by roughly 30% then they measure their basal metabolic rate which is the number of calories that they're burning on a day to day basis, and what you find is the body has reduced its energy expenditure by about 30 percent.
So if you're taking 30% fewer calories in and your body is using 30% less than you're not going to lose anybody fat which was the whole point of the exercise, and this is really the failure of this sort of calories and calories out model is that they're not independent variables the calories in and the calories that are not independent of each other, they go up and down together so simply focussing in on the calories leads you to fail in your efforts lose body fat hey.
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