Diet and vitamin preparations
Most vitamins are basically natural sources and can be obtained from them.
Vitamins are natural substances contained in food, and vitamin supplements-such as capsules, tablets, powders, liquids and other different vitamin preparations-are also extracted from food. Although many vitamins can be synthesized artificially, most of them are extracted from natural resources. For example, vitamin A is usually extracted from cod liver oil. Vitamin B complex is made from yeast or animal liver. Vitamin C is the best one extracted from rose fruit, the withered fruit of rose. In addition, vitamin E is usually extracted from soybean, malt or corn.
Comparison between synthetic vitamins and natural vitamins
There is only one difference between the two-that is, it is reflected in you. Although synthetic vitamins or minerals can achieve your expected results, natural vitamins are superior to synthetic vitamins in all aspects. If we analyze synthetic vitamins and natural vitamins chemically, we may not get the same result. However, natural vitamins have other advantages. Because naturally occurring vitamins contain substances not found in synthetic vitamins.
There is nothing in synthetic vitamin C except ascorbic acid. The natural vitamin C extracted from rose hips contains vitamin P (bioflavonoids and other substances, which constitute a vitamin C complex), which can improve the effectiveness of vitamin C. Natural vitamin E contains not only α-tocopherol, but also all tocopherols (α, β …) and so on. ), it can produce a greater effect than the synthesis of vitamin e.
Dr. T.G. Randolph, a famous American allergist, once said: "People who are easy to accept the chemical properties of natural substances may get a reaction when using synthetic substances, even though the chemical structures of the two substances are the same."
However, people who are allergic to pollen may have adverse reactions when taking natural vitamin C, because natural vitamin C may contain pollen impurities.
Most people who have tried synthetic and natural substances are sure that natural supplements rarely cause gastrointestinal problems. In addition, the most important thing is that even if you take more natural vitamins than the recommended intake, there will be no harmful side effects.
What is often misunderstood is the difference between inorganic and organic, which is different from the difference between synthesis and nature. All vitamins are organic because they contain carbon.
We know that taking vitamin preparations can't replace eating vegetables and fruits, and eating vegetables and fruits can't replace taking vitamin preparations. Only by combining closely and complementing each other's advantages can we achieve the purpose of preventing and treating diseases and prolonging life.
Taking a certain dose of vitamins can eliminate the harm of oxygen free radicals to human body. Data show that oxygen free radicals are related to more than 80 diseases, including heart disease, diabetes and cancer. Vitamins have a magical effect on the prevention and treatment of coronary heart disease, mainly because vitamins can promote blood circulation and enhance vascular elasticity. American nutrition professor Blumbert pointed out: "Taking enough vitamins can prevent many diseases including heart disease, cataract, diabetes and cancer"; Dr. Lyman, who specializes in vitamin research in Germany, pointed out: "Lack of vitamins A, C and E is more dangerous than high cholesterol causing myocardial infarction." American scientists have found that homocysteine is an acid synthesized by human body in metabolism, which will make blood vessels hard, brittle and narrow, but it can be eliminated by taking vitamin B6, B 12 and folic acid. Canadian geneticists Judith and Hall pointed out; About 30%-40% of male myocardial infarction and stroke should be attributed to folic acid deficiency. He pointed out: "You only need to consume 400 micrograms of folic acid every day to eliminate it."
Although vitamin preparations can also meet the human body's demand for vitamins, vitamins cannot represent vegetables and fruits. The advantage of vegetables and fruits is that they are rich in minerals, which are an important source of inorganic salts in human body. At the same time, they can keep the acid-base balance for the body, dredge the stool and eliminate the harm of intestinal endotoxin to the body. Under normal circumstances, the PH value of blood is 7.35-7.45. The human diet is rich in some substances from protein, such as cereals, beans, meat, eggs, fish, etc., which contain more sulfur and phosphorus, and their final products exist after metabolism and transformation in the body. After eating this kind of acidic food, the blood PH tends to be acidic, which makes people feel tired and weak, reduces work efficiency and affects human health. Vegetables and fruits are called alkaline foods because they contain a lot of elements such as potassium, sodium and magnesium, and the final metabolites of these foods are alkaline. In human diet, acidic food and alkaline food should not be neglected, and a certain proportion must be maintained to maintain acid-base balance. Vegetables and fruits not only contain vitamins and minerals, but also contain dietary fiber and organic acids. These are not found in vitamin preparations.
Because vegetables and fruits also contain certain vitamins, some people may not need to take vitamin preparations as long as they are not partial eclipse.
Here need to make some explanation, this is because:
L, due to the variety of vegetables and fruits, the types and quantities of vitamins are also very different. Take vitamin C per100g of vegetables and fruits as an example: 0.4mg of celery, 28mg of Chinese cabbage and 24mg of leek. Fresh jujube 243 mg. According to the medical profession, adults need 200-300 mg of vitamin C every day. Who can eat 1000g to several kilograms of vegetables every day? As for other vitamins that the body needs, they can't satisfy them.
2. Vegetables and fruits will also lose vitamins during processing and cooking, such as fried cabbage and spinach, which can lose 30-50% of vitamins.
According to the above facts, we should not only eat enough fruits and vegetables in our daily life, but also take a certain dose of multivitamins every day. Especially today, when the living standard is changing from subsistence to nutrition, people are no longer satisfied with filling their stomachs and maintaining their lives, but demand to improve their quality of life and hope to live a long and healthy life. Therefore, we should overcome the old idea that we don't need to take vitamin preparations as long as we don't have a partial eclipse. Only in this way can you achieve the goal of health and longevity.