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2/28/2005

THE ROLE OF INSULIN

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THE ROLE OF INSULIN

There are three basic units the body uses for energy:

1 Fats
2 Proteins
3 Carbohydrates

All three can be converted to blood glucose. However, while fats and proteins are converted slowly, carbohydrates are converted quickly causing quick spikes in the body’s blood sugar levels. These spikes in blood sugar levels cause the pancreas to create and release insulin until the blood sugar level returns to normal.

Meanwhile, insulin, a hormone produced in the pancreas that lowers our blood’s glucose levels is released into the blood as soon as the body detects that blood sugar levels have risen above its optimal level.

Insulin is a very efficient hormone that runs the body’s fuel storage systems. If there is excess sugar or fat in the blood insulin will signal the body to store it in the body’s fat cells. Insulin also tells these cells not to release their stored fat, making that fat unavailable for use by the body as energy.

Since this stored fat cannot be released for use as energy, insulin very effectively prevents weight loss. The higher the body’s insulin levels, the more effectively it prevents fat cells from releasing their stores, and the harder it becomes to lose weight. According to many authorities, over the long term, high insulin levels can lead to insulin resistance and cause serious health problems like the ones listed below:

1 Raised insulin levels and insulin resistance
2 Lower metabolism leading to weight gain
3 An increase in fatty tissue and reduction in muscle tissue
4 Accelerated aging
5 Increased food allergies and intolerances
6 Overworked immune system
7 Increased risk of heart disease, obesity, diabetes and cancer

Carbohydrates, especially simple carbs like sugar and starch, are quickly turned into sucrose by the body entering the blood stream quicker thereby causing the release of large amounts of insulin. The fewer carbs are eaten, the less insulin is produced by the body, and the fewer calories are stored as fat. Less fat storage equals less weight gain and fewer carbs eaten equals less insulin in the blood and the body using its fat stores for fuel.

The premise behind every low-carb diet plan is that a body that produces less insulin burns more fat than a body that produces lots of insulin. Some plans encourage a period of extremely low carbohydrate intake so that the body will enter a state of ketosis and more quickly burn fat stores.

These are usually called induction periods. The length of extreme carb control varies from seven days to however long it takes you to reach your ideal weight. After this period of extremely low carb dieting, maintenance levels of carb consumption are followed to prevent weight gain. The amount of carb you can safely eat will depend on your unique body system. And you will probably have to experiment to find out what level of carb intake is best for you.

No matter what your carb intake, it will be lower than the norm and you will still eliminate white flour and white flower products and certain other sugary and starchy foods. This is why these diet plans are known as low-carb lifestyles.

Low-carb success requires that you be willing to give up simple carbs for the long-term.

2/26/2005

History of Low Carb

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HISTORY AND BACKGROUND OF LOW-CARB

The terminology “low-carb” wasn’t really coined until around 1992 when the USDA announced America’s model food pyramid included six to eleven servings daily of grains and starches. However, low-carb dieting dates back more than 100 years before the trendy Atkins diet to 1864 with a pamphlet titled Letter on Corpulence written by William Banting, as close to the first commercial low-carb diet as you could get.

Banting had suffered a series of debilitating health problems due mainly to being overweight or “corpulent”. He searched in vain for cures to his weight problem, which many doctors at that time believed to be a necessary side effect of old age. He also tried eating less but he continued to gain weight and have various health problems. He could not understand how the small amounts of food he was eating led to his weight problem:

“Few men have led a more active life - bodily or mentally - from a constitutional anxiety for regularity, precision, and order, during fifty years’ business career, from which I had retired, so that my corpulence and subsequent obesity were not through neglect of necessary bodily activity, nor from excessive eating, drinking, or self indulgence of any kind, except that I partook of the simple aliments of bread, milk, butter, beer, sugar, and potatoes more freely than my age required…”

Many contemporary Americans on the go may recognize Banting’s previous unhealthy daily diet:

“My former dietary table was bread and milk for breakfast, or a pint of tea with plenty of milk, sugar, and buttered toast; meat, beer, much bread (of which I was always very fond) and pastry for dinner, the meal of tea similar to that of breakfast, and generally a fruit tart or bread and milk for supper. I had little comfort and far less sound sleep.”

Just substitute a Pop tart, doughnut or muffin with coffee and plenty of cream and sugar for breakfast, a fast food burger and fries with a super-sized soft drink for lunch and a frozen pot pie or pizza for dinner followed by dessert and you can see how Banting’s diet was so much like the typical fast-paced modern day Americans.

When his physician placed these items on a “forbidden foods list,” Banting lost 50 pounds and 13 inches in one year. He kept it off, living a long and much healthier life.

His new diet plan consisted of a number of meat dishes and he listed it as follows:

“For breakfast, at 9.00 A.M., I take five to six ounces of either beef mutton, kidneys, broiled fish, bacon, or cold meat of any kind except pork or veal; a large cup of tea or coffee (without milk or sugar), a little biscuit, or one ounce of dry toast; making together six ounces solid, nine liquid.

For dinner, at 2.00 P.M., Five or six ounces of any fish except salmon, herrings, or eels, any meat except pork or veal, any vegetable except potato, parsnip, beetroot, turnip, or carrot, one ounce of dry toast, fruit out of a pudding not sweetened any kind of poultry or game, and two or three glasses of good claret, sherry, or Madeira- Champagne, port, and beer forbidden; making together ten to twelve ounces solid, and ten liquid.

For tea, at 6.00 P.M., Two or three ounces of cooked fruit, a rusk or two, and a cup of tea without milk or sugar; making two to four ounces solid, nine liquid.

For supper, at 9.00 P.M. Three or four ounces of meat or fish, similar to dinner, with a glass or two of claret or sherry and water; making four ounces solid and seven liquid.

For nightcap, if required, a tumbler of grog (gin, whisky, or brandy, without sugar)-or a glass or two of claret or sherry.”

So great were the changes in his appearance and health that his friends and acquaintances began to notice and just like today wanted to know what diet he was on. Most important of all Banting could feel and see a difference himself.

“I am told by all who know me that my personal appearance greatly improved, and that I seem to bear the stamp of good health; this may be a matter of opinion or friendly remark, but I can honestly assert that I feel restored in health, “bodily and mentally,” appear to have more muscular power and vigour, eat and drink with a good appetite, and sleep well. All symptoms of acidity, indigestion, and heartburn (with which I was frequently tormented) have vanished. I have left off using boot-hooks, and other such aids, which were indispensable, but being now able to stoop with ease and freedom, are unnecessary. I have lost the feeling of occasional faintness, and what I think a remarkable blessing and comfort is, that I have been able safely to leave off knee-bandages, which I had worn necessarily for many years, and given up the umbilical truss.”

His how-to dieting book became very popular and was translated into multiple languages. However, over time it was abandoned.

Banting noted in Letter on Corpulence that a common health paradox of our time did not exist in his. This was the paradox of obesity, widely believed to be a problem of excess, among the poor. The poor of the 19th century could not afford the refined sugary foods that cause weight gain. But poor people of the 21st century sure can today.

In a recent Associated Press article titled, “Health Paradox: Obesity Attacks Poor”, the reporter noted that many poor families are stretching their food dollars by purchasing unhealthy processed and refined foods. Of one family Barbassa wrote,

“During winter, jobs are scarce, so Caballero feeds her husband and three children the cheapest food she can get: potatoes, bread, tortillas… As processed foods rich in sugar and fat have become cheaper than fruits and vegetables, the poor in particular are paying a high price with obesity rates shooting up, followed by diabetes.”

Unfortunately for the Caballero family, these cheap staples are bad for their health. Fresh meat, low-starch fruits and vegetables may be more expensive and have a shorter shelf life, but they are definitely worth the price in saved medical expenses and better health.

Throughout the years, as “calories” became known, variations of counting them were included in dietary solutions. And a variety of other issues were explored like how many of which foods should be eaten and how frequently.

While Banting’s diet eventually fell out of favor, low-carb diets did begin appearing again in the 20th century. The most famous of these are the Atkins and Scarsdale diets that came to popularity in the 1970s. While Scarsdale has a set 14 day meal plan that must be followed and greatly restricts calories, the Atkins diet allowed for unlimited calorie consumption as long as those calories were from protein, fat and vegetables and carbs intake was kept low.

Atkins and Scarsdale fell out of favor in the 1980’s as the U. S. Department of Agriculture encouraged the consumption of grains and grain products with the USDA food pyramid.

It was only in the 1990’s that we began to see a return to low-carb dieting that seems to be more than a fad. It’s a lifestyle! As more and more people realize the weight loss and other health benefits that are available to people who eat low-carb, the number of diets and stores that sell specialty low-carb products continue to rise.

In a nutshell, most low-carb diets carry the same basic premise: that too much of simple, refined carbohydrates leads to over overproduction of insulin, which leads to the storage of too much fat in the body. This fat storage is especially prominent around the middle.

While there are degrees of difference among the many diets, they all agree on the negative effects that excess insulin production have on our systems

Low Carb Slow Carb

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LOW-CARB, SLOW CARB

In a nutshell, there are two kinds of carbohydrates, simple and complex. Some refer to them as bad and good carbs, fast and slow digestion carbs and other possibly confusing lingo. Here’s the scoop.

SIMPLE CARBS

Foods with simple or refined carbohydrates most often have a low nutrient content and a high-glycemic index. They are quick to digest and can cause blood sugar to soar then fall dramatically within a short span of time. In order to keep the body running more healthy and stable, health advisors recommend that these type foods be limited.

Examples of these simple carbs are white bread, potatoes, bananas, and sugary treats like cookies, candy, cupcakes and cakes, and soda beverages like popular cola products.

COMPLEX CARBS

Foods with complex carbohydrates contain many nutrients and have a low- to moderate-glycemic index. Higher fiber content in these foods means slower digestion, which is healthier for the body. And these foods are considered good choices by health advisors.

Examples of these complex carbs are whole grains, most fruits and vegetables. Legumes, plants of the pea or bean family, are also in this category.

WHICH IS BEST????

While studies like one from the University of Arkansas for Medical Sciences in January of 2004 show that low-carb diets can help with weight loss; the carbs need to be of the complex, low-glycemic type. Notable is that a total avoidance of the simple carbs is not necessary, either. In other words a treat now and then, in moderation (and approved per your dietary advisor or in accordance with your health practitioner), should be fine.

As a side note, your teeth will also be healthier without the build up of sugar decay from simple carb foods. So healthier smiles will shine with healthier bodies.

OTHER HELPFUL TERMS

Here are some other terms to help explain the science and health issues behind low-carbohydrate dietary planning solutions. Note these are only basic definitions and can be explored at your leisure through other resources to further define their roles in the body’s health system.

CALORIE
A calorie is a measure of heat. Calorie also refers to a measure of the amount of energy a body gets from food. In a nutshell, the more calories in food, the more energy is required for the body to use up the nutrients.

CARBOHYDRATE
A carbohydrate is one of three major nutrients that provide the body with energy. Carbohydrates are made up of either single sugars or bound strings of sugar. Examples of single sugars (simple carbohydrates) are sucrose or table sugar, fructose or fruit sugar and lactose or dairy sugar. Bound strings of sugar or complex carbohydrates that are found in plants are often called starches. Examples of digestible kinds of complex carbs are wheat flour or potato starch. A non-digestible example is cellulose from celery. Carbs are converted by the body into sugar and used for energy. Unused carbs are stored in the body as fat.

FAT
A Fat is one of the three major nutrient groups that provide energy to the body. Fat is derived from animal or plant oil sources. It is broken down by the body into simpler fats and are burned or stored in the body.

FRUCTOSE
Fructose is sugar derived from plants, especially corn, that is used to sweeten commercial food products like sodas and other prepared foods. First gained widespread popularity in the 1970s and is usually listed in ingredients as “high-fructose corn syrup”.

GLUCOSE
Glucose is referred to as blood sugar. All carbohydrates whether simple or complex are converted by the body into sugar and the sugar within the body’s bloodstream is of this form. The level of glucose in the blood is the main stimulus for insulin secretion.

GLUCAGON
Glucagon is a hormone produced by the pancreas that encourages fat cells to convert their stores to glucose and release them for energy use. Glucagon must be released for the body to release and break down body fat. The pancreas cannot efficiently release both glucagon and insulin and will not release glucagon if blood sugar and insulin levels are high.

GLYCOGEN
Glycogen is the main form of carbohydrate storage in animals and occurs primarily in the liver and muscle tissue. It is readily converted to glucose as needed by the body to satisfy its energy needs. Also called animal starch.

GLYCEMIC INDEX
The glycemic index is a measure of how quickly individual foods will raise your body’s blood sugar level.

INSULIN
Insulin is one of two main hormones produced by the pancreas and the body’s major metabolic hormone. When the blood’s glucose increases, insulin is released by the pancreas to help transfer glucose into the cells for energy. Insulin also helps convert extra glucose to storage in fatty tissue, and helps promote amino acids which are turned into protein and stored in muscle. In the liver, it aids in extra glucose being stored as glycogen. Insulin can raise cholesterol levels and cause retention of fluids and salt and it gets in the way of breaking down stored fat. A lack of adequate insulin or lack of sufficient sensitivity to insulin’s effects in the body can lead to diabetes.

INSULIN RESISTANCE
Insulin resistance is a state reached when the body does not properly respond to and process the insulin it releases. Insulin resistance causes the pancreas to overproduce insulin. According to Drs. Michael and Mary Eades of Protein Power, insulin resistance causes high blood pressure, elevated cholesterol levels, coronary artery disease (heart disease), obesity, Type II diabetes and a host of other diseases and disorders.

KETONES
When the body breaks down fat for energy due to the lack of sufficient glucose for energy needs combined with the liver’s depletion of glycogen, ketones is a type of chemical result. Excess ketones cause bad breath and show up in urine during strip testing.

KETOSIS
Ketosis is the body’s process of burning stored fat for energy when glucose is not readily available. A survival mechanism used during times of famine. Generally thought not to be a good long-term state for the body to operate in. When ketosis takes place in someone who is the victim of famine, or who is not eating food for whatever reason, it can cause serious illness and eventually death.

PROTEIN
Protein is one of the three major nutrient groups that provide energy to the body. Protein is derived from animal and soy products and from some plant products like legumes (beans, peanuts and peas). Converted to amino acids by the body during digestion and stored in muscle cells as protein.

SUCROSE
Another name for sucrose is table sugar; it is derived from sugar cane plants.

STARCH
Starch is a type of sugar found in potatoes, white rice, breads, bagels and other foods.

TRANS FAT
Trans fat is a type of processed fat that does not occur in nature (also called hydrogenated or partially hydrogenated fat/oil). Used in baked goods like doughnuts, breads, crackers, potato chips, cookies and many other processed food products like margarine and salad dressings.

2/24/2005

Low Carb

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Low Carb
To help with weight issues and for overall improved health, many people turn to diets. In fact, government statistics show that while about 65 percent of Americans are overweight, 38 percent are actually doing something about it.

And according to a recent survey by the National Health Institute, about a third of overweight Americans who are trying to lose weight, are doing so by eating less carbohydrates (carbs) largely because of the increased popularity of fad diets like Atkins Diet and the South Beach Diet.

Although there have certainly been other low-carb or low-sugar diet plans before, and more will most assuredly come out in the years ahead, let’s take a look at the basics behind many of the major plans. And let’s take a look at how they fit into the real world today. Because while it might be great to lower the body’s sugar content and be healthier, wouldn’t it be great to learn how to do so while being part of this fast-paced world?

In the world of instant messaging, quick Internet interaction and the already multi-faceted day-to-day hectic schedules, dietary food budgeting, planning, preparing and shopping are issues that can become major sources of stress and reasons for dieting failure. Dual income families on-the-go and other super-busy wage earners and dieters often already suffer from more than their share of everyday stressors like fears of being laid off, their jobs being relocated or terminated, juggling more than one job, dependents (both elderly and minors) and trying to fund and juggle continuing education into their lives, budgets, and daily routines.

People want and need simpler solutions. And they need simpler dieting plans. Forget spending mega bucks on gourmet, hard-to-find items. Forget spending hours just to prepare meals. And forget counting, measuring, and weighing ingredients.

Either a low-carb plan fit into real-world lives, or it doesn’t. First we’ll take a look at some basic terms and definitions to help understand the science behind low-carb plans. Let’s see how many of the major players’ plans measure up.

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