Low Carb Diet - Weight Loss Benefits

A low carbohydrate diet, as the name implies, is a diet that is low, or restricted, in carbs. Scientific research has shown the many benefits of such a diet plan on weight loss.

A low carb diet, as the name implies, is a diet that is low in carbohydrates (bread, rice, sugar, especially the refined variety) and high (or rather adequate) in fats and proteins (meat, eggs, cheese, butter, nuts, etc.). A number of variations of the diet exist (most well known, Dr. Atkins Diet), but the one thing that is common to all is the drastic cutback on the intake of carbohydrates in the diet plan.

Most of these plans substitute the outgoing carbohydrates with fats and proteins. Although different types of these diets may vary in the recommended intake of carbohydrates, fats and proteins, as a general rule a low carb diet is tantamount to a high-fat and moderate protein diet.

In a low carb diet at least 60 to 70% of the daily calorie intake must come from fats, contrary to a normal diet where a major portion of the calories comes from carbohydrates. The carbohydrate calories should not constitute more than 5 to 10% of the daily calorie intake. The remaining 20 to 30% calories can come from proteins.

Why a low carb diet?

How often have you come across overweight people feeling frustrated at not being able to lose an inch of the stubborn abdominal fat in spite of exercising and in spite of being on the traditionally recommended low fat, high carb diet for months? Too often to even remember! The reason, obviously, has to lie in the wrong approach to attack the problem underlying excess weight and excess inches.

Scientific research has shown that dietary fat is not necessarily converted into body fat, whereas carbohydrates readily convert into fat by the action of insulin, a hormone produced by pancreas in response to elevated sugar levels in the blood (as caused by carbohydrates) to allow blood sugar to be used by cells.

However, insulin also aids in fat deposition and stimulates the brain to produce hunger pangs. The vicious cycle of more carbohydrates, more and more insulin repeats, resulting in cells becoming insulin resistant with time. Consequently, excess sugar either stays in the blood (causing diabetes) or starts converting to fat (causing obesity) instead of being used up by cells to produce energy, leading to obesity, fatigue and lethargy.

Benefits of a low carb diet

A low carb diet helps prevent hyperinsulinemia (i.e., elevated insulin levels in the blood) and increases the level of glucagon, a pancreatic hormone that reverses the action of insulin, stabilizes blood sugar levels, and helps burn fat to energy and remove cholesterol deposits from arteries.

And because the body gets into the fat-burning mode, sustained weight and inch loss occurs, accompanied by lowered blood pressure, better lipid profile and raised energy levels.

Due to the consumption of fats and oils, the appetite and hunger pangs stay in control, because fatty foods are more satisfying and take longer to digest. And since limited amounts of complex carbohydrates do accompany the fats (obviously, the healthy types), the body metabolism does not switch to starvation mode. A vitamin/mineral supplement and a fiber supplement may be added if necessary.

Once the body chemistry is back to normal and the excess weight knocked off, complex carbohydrates and some vegetables/fruits can be added to the diet. But if one does not want to go back to the earlier state, one has to kiss goodbye the white bread, pastries, cakes, ice creams and things like that, except for an occasional binge.

About the Author:
Michael J. Harris is an avid weight lifter and adheres to a low carb diet as a part of an overall health routine. Find out more about how a http://lowcarbdietreview.blogspot.com/
Submitted on 2006-11-09
Article Source: http://www.articlesarea.com/

Calorie Definition and Weight Loss

The food calorie is sometimes capitalized as Calorie to distinguish it from the chemistry calorie; however, this capitalization is rarely observed in practice.

The Nutrition Calorie

Nutritionists measure the energy content of food in "calories" (sometimes capitalized and abbreviated as Cal or sometimes C, or abbreviated kcal as if small calories were being used), where each food calorie represents 4,186 joules. This is equivalent to 1000 of the calories used in chemistry, and thus the food Calorie would be called a kilocalorie if small calories were being used. However, in chemistry calories have been deprecated as a scientific unit of measure in favor of joules, and therefore in common modern usage the word "calorie" usually refers to a food calorie.

This situation provides two ways of talking about the amount of calories in food which look quite different but that express the exact same amount of energy. One may say that dietary fat has nine kilocalories (kcal) per gram, while proteins and carbohydrates have four kcal per gram, or, one may say that fat has nine Calories per gram while carbohydrates and proteins have four Calories per gram.

The amount of food energy in a particular food is measured by completely burning the food in a bomb calorimeter, a method known as direct calorimetry. Dieticians recommend counting calories to avoid obesity. The government of the United Kingdom recommends consumption of no more than 2000 Calories (2000 kcal) by women each day and 2500 Calories (2500 kcal) by men each day.

The Physics and chemistry calorie

In physics or chemistry, a calorie (abbreviated cal) is a unit of energy that equals the amount of heat necessary to raise the temperature of one gram of water by 1 degree Celsius, at a pressure of 1 atm. This amount of heat depends somewhat on the initial temperature of the water, which results in various different units sharing the name of "calorie" but having slightly different energy values:

* the 15 °C calorie,

* the 4 °C calorie,da

* the mean 0 °C to 100 °C calorie,

* the International Steam Table calorie,

* the thermochemical calorie,

The slight variations in these units can be seen if you convert them to joules. For example, one 15 °C calorie is the amount of heat necessary to raise the temperature of 1 g of water from 14.5 °C to 15.5 °C. This is approximately equal to 4.1855 J or 3.968×10-3 Btu. The International Steam Table calorie is approximately equal to 4.1868 J and the thermochemical calorie 4.184 J.

Of these various units, what is most commonly meant by calorie in cntemporary English text is the 15 °C calorie.

The nutritional Calorie represents 1000 of these 15 °C calories. Since this could be a source of confusion and error, these units are now deprecated. The International System of Units (SI) unit for heat (and for all other forms of energy) is the joule (J), while the (obsolete) cgs (centimeter gram second system of units) system uses the erg (unit of energy and mechanical work in the centimeter-gram-second system) - From Wikipedia, the free encyclopedia.

Before start losing weight and counting calories you must first calculate the number of calories your body needs everyday, because this amount changes from person to person, depending on sex, age, weight, muscle content or height. Averages are situated around 2000 calories for women and 2500 for men. An easy, but not so accurate calculation is that for every 500 less than your normal amount of calories eaten every day you will lose up to one pound (453,6g) per week.

Counting calories must be included as part of your diet, because when you loss weight is best to know how many calories your food has, and so ensuring that the amount of calories burned each day is more than the amount stored. All nutritionists agree that a healthy low fat diet without counting calories could not exists, so take your time and solve that problem with various calorie calculators.

By knowing all the time the amount of calories consumed you can control how much you can eat and how it will affect your body. When dieting and counting the calories you can eat almost anything as long as you do not exceed the number of calories burned every day.

When you eat fewer calories, your body is forced to consume the fat stored to make up the deficit in your calorie count. Nutritionist’s advice is that you must combine psychical exercises with healthy eating in order to create some calorie deficit.

About the Author:
Gerald Njuguna is the owner of WeightLossPerfection.com. The site offers tips on weightloss including fast weight loss advice, nutritional topics plus other informative articles on losing weight. To find out more on this click here: www.weightlossperfection.com
Article Source: http://www.articles2k.com