Eggs are such a compact form of nutrition that they’re often called the perfect food. One large egg provides 70 calories, 6 grams of protein, less than 1 gram of carbohydrates, 4,5 grams of fat and generous amounts of many vitamins and minerals. In fact the only nutrient completely absent from the egg is vitamin C – chickens, unlike humans, manufacture all they need. (If a egg is eaten alone, 10% of its iron is absorbed by the body. If 85 milligrams of Vitamin C are eaten with it, 20% is absorbed. But if one gram of Vitamin C is taken with the egg, the amount of iron absorbed jumps to 75%.)
A Large egg also contains 215 milligrams of cholesterol. Egg yolks are an excellent source of nutrients. They are one of the few foods that provide vitamin D, and they boast respectable amounts of riboflavin, folate, vitamin A and selenium. Most people have become accustomed to thinking of eggs (cholesterol) as an evil destroyer of health. The average person is not even sure what cholesterol is exactly; only that it’s fat in your blood and it’s dangerous. In fact, nothing could be further from the truth: cholesterol is absolutely essential for life, and falling levels of cholesterol are a grave sign, often a marker for cancer.
Cholesterol isn’t even really a fat; it’s a pearly white waxy alcohol with a soapy feel. Every cell in your body requires cholesterol to maintain the structural integrity of its cell membrane, to control the flow of water and nutrients into the cell and waste products out. Your body uses the cholesterol molecule as a building block for many important hormones: the sex hormones (estrogen and testosterone) and your body’s natural steroid, hydrocortisol.
Cholesterol in the bile your liver makes aids in the digestion of fatty foods and helps you absorb fat soluble vitamins A, D, E and K from food. Cholesterol gives your skin the ability to shed water.
Every cell in your body can make it. In fact, only about 20% of the cholesterol in your blood comes from your diet. Your body (primarily your liver) makes the vast majority (80%). To ensure your cells always have plenty, if there’s not enough coming in, the cells pick up slack and make more. That’s why simply cutting back on dietary cholesterol often doesn’t cause much of an improvement in blood cholesterol levels.
The standard low fat diet approach to treating cholesterol actually causes the cells of your body to have to make more cholesterol for vital functions. Control over how match the cells make lies within the cells themselves. When the supply in the cell runs low, the cell can either make more cholesterol or send messengers to the surface of the cell to collect some from the bloodstream.
Insulin plays a key role here: it revs up the cells cholesterol manufacturing machinery, building up a surplus within the cell, making it unnecessary for the cell to retrieve any from the bloodstream, and thereby allowing excess cholesterol to build up in the blood. That is the reason why so many people today use cholesterol drugs without eating any or very few cholesterol.
By eating a diet that reduces insulin levels, as the Keto-SA program does, you reduce the signal telling the cells to make cholesterol; they must harvest it from the blood to have enough, and your blood cholesterol levels especially the “bad” LDL- fall rapidly. Even while eating a diet that contains red meat, egg yolks, cheese, butter and cream, as long as you control your insulin output, your cholesterol will remain in the healthy range.
If cholesterol is essential for life, and without it we will die, why all this fuss? The answer to this question lies in the Seven Countries Study of Dr. Ancel Keys, the imperious physiologist who laid the groundwork for the fight against fat. With World War II over, Keys turned his attention to a review of diet and health around the world. The results of his Seven Countries Study, revealed in the 1950’s supposedly showed that people in countries where the typical diet was high in saturated fat had higher rates of heart disease. Unfortunately, Key’s reputation and standing were so great that the medical establishment immediately embraced his conclusions.
For more info on the Key’s story and the truth about cholesterol (click here)