Weíve been told over an over again that daily weighing is unnecessary,
yet many of us canít resist peeking at that number every morning. If you
just canít bring yourself to toss the scale in the trash, you should
definitely familiarize yourself with the factors that influence itís
readings. From water retention to glycogen storage and changes in lean
body mass, daily weight fluctuations are normal. They are not indicators
of your success or failure. Once you understand how these mechanisms
work, you can free yourself from the daily battle with the bathroom
Water makes up about 60% of total body mass. Normal fluctuations
in the bodyís water content can send scale-watchers into a tailspin if
they donít understand whatís happening. Two factors influencing water
retention are water consumption and salt intake. Strange as it sounds,
the less water you drink, the more of it your body retains. If you are
even slightly dehydrated your body will hang onto itís water supplies
with a vengeance, possibly causing the number on the scale to inch
upward. The solution is to drink plenty of water.
Excess salt (sodium) can also play a big role in water retention. A single
teaspoon of salt contains over 2,000 mg of sodium. Generally, we should
only eat between 1,000 and 3,000 mg of sodium a day, so itís easy to go
overboard. Sodium is a sneaky substance. You would expect it to be most
highly concentrated in salty chips, nuts, and crackers. However, a food
doesnít have to taste salty to be loaded with sodium. A half cup of
instant pudding actually contains nearly four times as much sodium as an
ounce of salted nuts, 460 mg in the pudding versus 123 mg in the nuts.
The more highly processed a food is, the more likely it is to have a
high sodium content. Thatís why, when it comes to eating, itís wise to
stick mainly to the basics: fruits, vegetables, lean meat, beans, and
whole grains. Be sure to read the labels on canned foods, boxed mixes,
and frozen dinners.
Women may also retain several pounds of water prior to menstruation.
This is very common and the weight will likely disappear as quickly as
it arrives. Pre-menstrual water-weight gain can be minimized by drinking
plenty of water, maintaining an exercise program, and keeping high-sodium
processed foods to a minimum.
Another factor that can influence the scale is glycogen. Think of
glycogen as a fuel tank full of stored carbohydrate. Some glycogen is
stored in the liver and some is stored the muscles themselves. This
energy reserve weighs more than a pound and itís packaged with 3-4
pounds of water when itís stored. Your glycogen supply will shrink
during the day if you fail to take in enough carbohydrates. As the
glycogen supply shrinks you will experience a small imperceptible
increase in appetite and your body will restore this fuel reserve along
with itís associated water. Itís normal to experience glycogen and water
weight shifts of up to 2 pounds per day even with no changes in your
calorie intake or activity level. These fluctuations have nothing to do
with fat loss, although they can make for some unnecessarily dramatic
weigh-ins if youíre prone to obsessing over the number on the scale.
Otherwise rational people also tend to forget about the actual weight of
the food they eat. For this reason, itís wise to weigh yourself first
thing in the morning before youíve had anything to eat or drink.
Swallowing a bunch of food before you step on the scale is no different
than putting a bunch of rocks in your pocket. The 5 pounds that you gain
right after a huge dinner is not fat. Itís the actual weight of
everything youíve had to eat and drink. The added weight of the meal
will be gone several hours later when youíve finished digesting it.
Exercise physiologists tell us that in order to store one pound of fat, you
need to eat 3,500 calories more than your body is able to burn. In other
words, to actually store the above dinner as 5 pounds of fat, it would
have to contain a whopping 17,500 calories. This is not likely, in fact
itís not humanly possible. So when the scale goes up 3 or 4 pounds
overnight, rest easy, itís likely to be water, glycogen, and the weight
of your dinner. Keep in mind that the 3,500 calorie rule works in
reverse also. In order to lose one pound of fat you need to burn 3,500
calories more than you take in. Generally, itís only possible to lose
1-2 pounds of fat per week. When you follow a very low calorie diet that
causes your weight to drop 10 pounds in 7 days, itís physically
impossible for all of that to be fat. What youíre really losing is water,
glycogen, and muscle.
This brings us to the scaleís sneakiest attribute. It doesnít just weigh fat. It
weighs muscle, bone, water, internal organs and all. When you lose "weight," that
doesnít necessarily mean that youíve lost fat. In fact, the scale has no way of
telling you what youíve lost (or gained). Losing muscle is nothing to celebrate.
Muscle is a metabolically active tissue. The more muscle you have the more
calories your body burns, even when youíre just sitting around. Thatís one reason
why a fit, active person is able to eat considerably more food than the dieter who
is unwittingly destroying muscle tissue.
Robin Landis, author of "Body Fueling," compares fat and muscles to
feathers and gold. One pound of fat is like a big fluffy, lumpy bunch of
feathers, and one pound of muscle is small and valuable like a piece of
gold. Obviously, you want to lose the dumpy, bulky feathers and keep the
sleek beautiful gold. The problem with the scale is that it doesnít
differentiate between the two. It canít tell you how much of your total
body weight is lean tissue and how much is fat. There are several other
measuring techniques that can accomplish this, although they vary in
convenience, accuracy, and cost. Skin-fold calipers pinch and measure
fat folds at various locations on the body, hydrostatic (or underwater)
weighing involves exhaling all of the air from your lungs before being
lowered into a tank of water, and bioelectrical impedance measures the
degree to which your body fat impedes a mild electrical current.
If the thought of being pinched, dunked, or gently zapped just doesnít
appeal to you, donít worry. The best measurement tool of all turns out
to be your very own eyes. How do you look? How do you feel? How do your
clothes fit? Are your rings looser? Do your muscles feel firmer? These
are the true measurements of success. If you are exercising and eating
right, donít be discouraged by a small gain on the scale. Fluctuations
are perfectly normal. Expect them to happen and take them in stride.
Itís a matter of mind over scale.
Managing Your Weight