Great Ariticle from primusweb.com about weighing yourself daily, its long but its worth the read:
**Why the Scale Lies**
"We’ve been told over an over again that daily weighing is unnecessary, yet many of us can’t resist peeking at that number every morning. If you just can’t bring yourself to toss the scale in the trash, you should definitely familiarize yourself with the factors that influence it’s 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 scale.
Water makes up about 60% of total
body mass. Normal fluctuations in the
body’s water content can send scale-watchers into a tailspin if they don’t understand what’s 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 it’s 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 it’s 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 doesn’t 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. That’s why, when it comes to eating, it’s 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 it’s packaged with 3-4
pounds of water when it’s 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 it’s associated water. It’s 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 you’re 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, it’s wise to weigh yourself first thing in the morning before you’ve 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. It’s the actual weight of everything you’ve had to eat and drink. The added weight of the meal will be gone several hours later when you’ve 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 it’s not humanly possible. So when the scale goes up 3 or 4
pounds overnight, rest easy, it’s 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, it’s 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, it’s physically impossible for all of that to be
fat. What you’re really losing is water, glycogen, and muscle.
This brings us to the scale’s sneakiest attribute. It doesn’t just weigh
fat. It weighs muscle, bone, water, internal organs and all. When you lose "weight," that doesn’t necessarily mean that you’ve lost
fat. In fact, the scale has no way of telling you what you’ve 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 you’re just sitting around. That’s 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 doesn’t differentiate between the two. It can’t 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 doesn’t appeal to you, don’t 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, don’t be discouraged by a small gain on the scale. Fluctuations are perfectly normal. Expect them to happen and take them in stride. It’s a matter of mind over scale. "
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