Low cost and easy to access nutrient dense food, eggs constitutes an excellent dietary staple. Egg is an international food that everyone likes. All around the world, people prepare egg in several different ways. They also use it in many preparations, cooking and baking. This article aims at showing up all the benefits and the nutritional supply of egg yolks.
What is egg yolk?
Egg yolk is the yellow part that is at the bottom of an egg. It is an important part of the egg as it is rich in cholesterol. It also constitutes a high source of vital nutrients and health benefits.
Main benefits of egg yolk
Generally, eating a whole egg brings enough protein, fat and calories people need in a diet, per day. However, some studies had shown that there are far more nutrients in the yolk than in the whites. All liquid yolk, liquid egg yolk or dried egg yolk gathers in fact more proteins, at the same rate.
According to the same review held in the United States Department of Agriculture, nutrients and proteins in egg yolk may provide a diminished risk of gastrointestinal distress. It comes from the fact that the egg proteins contains phosvitinn, anutrient that is responsible of the reduction of the number of compounds in the body that provoke inflammation.
After, egg yolk boosts also the immune system especially with the sulfated glycopeptides that they gather. These last are responsible of the stimulation of the production of macrophages, the cells in the immune system that fight against diseases and infection.
In addition, egg yolk plays also a great role in lowering the blood pressure. As they are rich in peptides, they significantly contribute to the reduction of blood pressure. Remember that blood pressure may cause heart attack or other heart diseases.
Besides, the same review show up that eating regularly egg yolk may reduce the risk of vision matters as they are a significant source of lutein and zeaxanthin, powerful carotenoids that prevents cataracts and macular degeneration.
Nutritional benefits of egg yolk
In fact, the nutritional content of an egg yolk rely on its size, its origin, the processing of the egg but also the species that has produced it. Their final dietary value depends mainly on their preparation. For instance, if you fry an egg yolk, the fat and the cholesterol content of the dish may be doubled.
Otherwise, a raw yolk from one large and standard egg provides 55 calories, 2.70 g of protein, 4.51 g of fat, 184 milligrams of cholesterol, 0.61 g of carbohydrate, 0.10 g of sugar and 0 G of dietary fiber.
As far as minerals are concerned, egg yolks gather at least seven of them. These are calcium, iron, magnesium, phosphorus, potassium, sodium and zinc. But egg yolk is also a considerable source of many vitamins that include fat-and-water-soluble vitamins. But they are also a source of thiamin, riboflavin, niacin, vitamin B6, vitamin B12, Vitamin A, vitamin E, vitamin D 2, vitamin D3 and vitamin K.
Otherwise, notice that duck, quail, goose and turkey eggs have higher amounts of many energetic nutrients that chicken ones.
What is better, yolk or white?
A whole egg is nutritive and brings a high amount of nutrients. The white gathers more protein but the yolk provides nearly all of the fat-and water-soluble vitamins and minerals in eggs. But researches suggest that eating whole eggs is more beneficial than eating egg whites alone. Obviously, higher rates of muscle metabolism are quickly acquired in the consumption of whole eggs than xhite eggs alone.