The All-You-Can-Eat Diet: Part II
Some people just can’t muster the willpower to change their eating
habits for the sake of losing weight. Does this mean they are fated to
remain overweight for the rest of their lives? No, it doesn’t. As
long as you are willing to maintain a consistent, intensive exercise
habit, you can achieve your ideal body composition without changing
your eating habits.
It’s a simple game of math. No matter how many calories you eat, it’s
a finite number, and probably not more than 3,500 to 3,800 per day.
Exercise, as we all know, burns calories. The specific rate at which
it burns calories depends on its intensity, but at any intensity level,
the total number of calories you burn daily though exercise depends on
how much time you spending working out. If you spend enough time
working out, you will burn more calories than you consume, and you will
lose weight. There are no exceptions to this principle.
Let’s look at a hypothetical example to see how exercise-only weight
loss works in a fairly typical case. Suppose you currently weigh 200
pounds. Your ideal body weight is 150 pounds. You do not exercise
currently. Using this information, you can use an online calculator
such as the one
here
to produce an estimate of the number of calories you need to consume
daily to maintain your present weight. This figure also serves as an
estimate of the number of calories you’re actually burning each day
(supposing you are not currently in a period of weight gain). In this
case, the result produced is 2,818 calories per day.
So we now know that you are consuming and burning roughly 2,818
calories per day. Since your goal is to lose 50 pounds, we now need to
calculate how many calories per day you would need to consume at the
same activity level to get down to 150 pounds. Using the same
calculator, the figure we come up with is 2,114 calories per day. What
this means is that you would have to reduce your daily caloric intake
by 700 calories to reach your goal body weight of 150 pounds.
What this calculator does not tell you is how long it would take. To
do that we need to make another calculation. For every 3,500 calories
your body burns and does not replace with food, you lose one pound.
Thus, with a caloric deficit of 700 calories per day, you could expect
to lose one pound every five days. It will then take you almost 36
weeks to lose 50 pounds. Or will it? Actually, it would probably take
a lot longer, because a caloric deficit of 700 calories per day will
cause your basal metabolic rate to slow significantly as your body
chemistry goes into starvation food and adapts in order to “cling” to
every calorie you swallow. This slowing of metabolism effectively
decreases the number of calories you need to maintain your current body
weight, which in turn effectively shrinks the caloric deficit you
achieve by consuming only 2,114 calories per day. In addition, weight
loss itself reduces the number of calories your body burns each day,
compounding the problem. As a result, the longer you diet, and the
more weight you lose, the lower your rate of weight loss becomes.
It is not possible to accurately estimate how much time these factors
would add to the process of losing 50 pounds, but let’s just throw out
a ballpark guess of 6 weeks. So now we’re looking at roughly 42 weeks
to drop from 200 pounds to 150 pounds through dieting alone.
There’s another problem, however, with trying to lose 50 pounds by
remaining sedentary and decreasing your food intake by 700 calories per
day: it would make you miserable with hunger. That’s why very few
people are able to permanently lose such substantial amounts of weight
without exercising.
Now let’s see how much exercise you would have to do to reach your goal
weight of 150 pounds without reducing your food intake. The same
guideline applies: for every 3,500 calories you burn through exercise,
you will lose one pound. The difference is that this will never
change, because your metabolism will not slow down and because a
calorie’s worth of exercise remains a calorie’s worth of exercise, no
matter how much weight you lose. True, you will burn fewer calories
per minute of exercise at any given intensity level as you lose weight,
but you will make up for this effect by increasing your intensity level
as you become fitter.
Let’s suppose your chosen form of exercise is jogging. At your current
weight of 200 pounds, you will burn roughly 900 calories per hour spent
jogging. If you jog 6 hours per week, it will take you approximately
32 weeks to reach your goal weight of 150 pounds, assuming you increase
your running pace gradually over that time period as you lose weight
and gain fitness.
Now, to be realistic, we can’t assume that you would be able to begin
jogging an hour a day, six days per week, after not having exercised at
all recently. If we assume a 4-week ramp-up period is required to get
to that level, then we’re looking at 36 weeks to lose 50 pounds through
exercise alone versus 42 weeks to get the same result through dieting
alone (assuming you could resist hunger and stay on the diet!).
And let’s remember: If you used exercise to drop from 200 to 150
pounds, you could continue eating roughly 2,818 calories per day and
maintain your body new, ideal body weight, whereas you would have to
continue eating a meager 2,114 calories per day to maintain the same
weight without exercise.
There are some people in the world who hate exercise so much that they
would rather go hungry to lose weight than jog six hours per week so
they could lose weight without changing their eating habits. But
research has clearly demonstrated that very few people are able to
maintain large amounts of weight loss without exercise.
The fact that it is possible to achieve permanent weight loss on an
all-you-can eat diet is poorly understood by the general public.
That’s a shame, because for the large number of men and women who
cannot muster the willpower to eat less or give up their favorite
high-calorie foods, exercise-only weight loss is the only realistic way
to achieve their ideal body weight. As a man who has done just that in
his own life, I wrote this article series to provide encouragement for
others like me.