Do weight changes
translate into fat loss?
On a day to day basis a scale is an extremely poor tool for
giving you information on changes in bodyfat levels which are very small. Daily weight changes are mostly accounted for
by four factors: bowel movements,
urination, starch and sugar intake, and blood volume. Since your blood volume typically does NOT
vary that much the other factors are more relevant.
Bowel Movements and Urination vary a lot between different
people anywhere from 1.3lbs to 5.7lbs in a single day. This is one of the reasons to consistently
weight yourself after you wake up and go to the bathroom and before you eat or
drink much.
However, the biggee when it comes to daily weight
fluctuation, is usually glycogen storage levels. Glycogen is just the storage form of
glucose aka blood sugar. All starch
and sugar ultimately end up as glucose, glycogen or fat.
For example, on the front end of a low
carb diet you will show big weight loss which is almost all water because you
store glucose/glycogen with water – hence the term carbo “Hydrate”. Muscle and organs contain the highest levels of water, and this is significant because most of your bodyweight comes from muscles and
organs.
So daily changes in weight are NOT a good reflection in
changes in bodyfat levels!
Can daily weighing
help with long-term weight loss and fat loss?
In order to answer this question let’s review the scientific
studies that have looked at this issue.
The recent advent of WIFI scales is allowing much more accurate weight
records because prior to that people had to take the time to write down their
weight each day.
In a recent WIFI scale study called the Weight Trial here
were the results:
Over a six-month period, those who weighed daily lost about
13 lbs more than the control group.
Even those who weighed themselves up to five times each week
lost less weight than the daily weighers.
Daily Weighers were more likely to do things like eating
less food and watching less television so clearly the weighing helped by
changing behaviors!
Although this study did not measure body fat, it is quite
likely that the body weight loss did translate into significant fat loss.
For certain groups, daily weighing is a bad idea such as
people with eating disorders and other psychological disorders including
extremely low self-esteem. In
addition, daily weighing does not work for everyone. For some people the inevitable plateaus or
variations in weight loss can very frustrated and quit the whole process!
So daily weighing may be helpful for you, but it is not
perfect and it does not accurately measure changes in bodyfat levels so it is
important to do use some method of body composition testing to measure these
changes which should be your ultimate goal!
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