The literature of the last three decades indicate that saturated fats are the main cause of cardiovascular disease.But now scientists have proved that it is not so.Studies have shown that young people do not necessarily exclude fats from your diet.If we talk about the elderly, the restrictions on their admission is still scientifically accurate.
Some scientists believe that saturated fats are closely related to human genetics are involved in metabolic processes, are structural components of biological membranes, etc.Employees of the University of Cardiff proved that milk fat reduces risk of heart disease and blood vessels.Therefore, doctors are advised to still use whole milk instead of skim.Use of this product in children and young people do more harm than good.In the diet is necessary to limit the amount of "bad" trans fat, sugar and salt.
now know that saturated fats do not cause weight gain.Typically, this process occurs because consumption of a significant amount of carbohydrate.Use the minimum amount of fat triggers the development of many diseases.First of all, it is connected with the fat-soluble vitamins A, D, E, K, F. These elements simply will not be absorbed by the body without sufficient amounts of lipids.As a result, there are hypo- and beriberi.Do not forget that the steroid hormones and bile acids are derived lipids.Fats - an excellent thermal insulation material, an important source of energy, water and endogenous substrate for the synthesis of a number of bioactive compounds to the body.
And still need to figure out what are the fats.Chemistry of fats (lipids)
They are divided into three large groups: simple, complex and derivatives.The former include those made from glycerol (trihydric alcohol) and higher fatty acids.This group includes triacylglycerols, sterols and waxes.The molecule contains glycerol lipid complex, higher fatty acids, phosphate and sulfate acids, nitrogenous substances, carbohydrates and many other compounds.The derivatives include carotene lipids, fatty acids, higher alcohols, and some fat-soluble vitamins etc.
With regard to higher fatty acids in the fats, they primarily include acyclic saturated and unsaturated fatty acids.In some of the fat composition comprises cyclic carboxylic acid and a hydroxy acid.Saturated fats contain high levels of palmitic, stearic, myristic acids.It is common knowledge that some unsaturated fatty acids are not produced in the body or are synthesized in insufficient, a minimum amount.In this regard, they called with essential or indispensable.To this group belong arachidonic, linoleic, linolenic acid.Essential fatty acids in sufficient quantity of vegetable oils.The milk fat contains a large amount of arachidonic acid.Monounsaturated fats contain a huge amount of oleic acid.
In humans, saturated fat (triacylglycerides) are used as an energy material.These include those of animal origin, as well as solid vegetable.Triacylglycerols in many meat products of fatty meats and dairy products, chocolate and confectionery products.Excessive consumption of these fats can cause an increase in the concentration of cholesterol in the body.So-called "pathological" cholesterol deposited on the walls of blood vessels, which in turn causes the development of diseases such as atherosclerosis, impaired vascular compliance, produced hemorrhage.
Nutritionists recommend eating a small amount of saturated fat.The most harmful to the body are considered to be trans-fats.Such isomers are formed due to the action of physical and chemical factors on vegetable fats, which change their physical state from liquid to solid.To those include margarine and confectionery and cooking oils.They can produce a carcinogenic effect.
