Why do the elderly take vitamins, and what is the use of vitamin supplementation for the elderly?

Vitamins, also known as vitamins, are a class of organic substances necessary to maintain human life activities, and are also important active substances to maintain human health. Vitamins are found in very small quantities in the body, but they play an important role in the growth, metabolism, and development of the human body. Although the chemical structure and properties of various vitamins are different, they have the following things in common:

Vitamins are found in food in the form of provitamin (vitamin precursors) Vitamins are not components of the body's tissues and cells, and it does not produce energy, its role is mainly to participate in the regulation of the body's metabolism Most vitamins, the body can not synthesize or the synthesis amount is insufficient, can not meet the needs of the body, must be often obtained through food The human body's need for vitamins is very small, and the daily requirement is often calculated in milligrams (mg) or micrograms (g), However, once deficient, it will trigger the corresponding vitamin deficiency, causing damage to human health. Unlike carbohydrates, fats and proteins, vitamins account for only a very small proportion of natural foods, but they are necessary for the human body. Some vitamins such as B6 and K can be synthesized by bacteria in the animal's intestine in sufficient quantities to meet the animal's needs.

Animal cells can convert tryptophan into niacin (a B vitamin), but the amount of production is insufficient; Vitamin C can be synthesized by all animals except primates (including humans) and guinea pigs. Plants and most microorganisms can synthesize vitamins on their own and do not need to be supplied from outside the body. Many vitamins are components of coenzymes or coenzymes.

Some small amounts of organic compounds necessary for human and animal nutrition and growth play an extremely important role in the metabolism, growth, development and health of the body. If there is a long-term deficiency of a certain vitamin, it will cause physiological dysfunction and certain diseases will occur. It is generally obtained from food.

There are dozens of them found now, such as vitamin A, vitamin B, vitamin C, etc.

The alienation effect of the elderly is greater than the assimilation effect, and the ability of the elderly to absorb nutrients will become worse, and the physique and human resistance will become weaker, so the elderly need to eat more nutrients and the like.

Step Method:

1. First, the bone hardness of the elderly decreases, and eating more vitamin D can increase the hardness of bones. Second, eating more vitamin A can help the elderly slow down the declining vision. Third, all kinds of vitamins should be balanced to make the body of the elderly healthier.

Therefore, vitamin D and A supplementation is necessary.

2. When the elderly are deficient in vitamin B1, nutritional diabetes, polyneuritis, beriberi, etc. can occur. When the elderly are deficient in vitamin B6, they may have symptoms of deficiency such as anemia, decreased human resistance, and spasms. When taken in large quantities, it has a significant antagonistic effect with levodopa, which can eliminate the anti-tremor paralysis effect of levodopa; Reduces the anti-tuberculosis effect of isoniazid.

Therefore, vitamins B1 and B6 are necessary.

3. When the elderly are deficient in vitamin C, they may have symptoms of vitamin C deficiency such as bleeding gums and loose teeth. However, long-term blind consumption of large amounts can cause nausea and vomiting, stomach discomfort and urinary stones. When vitamin B12 is deficient in the elderly, it can lead to megaloblastic anemia, neurological disorders, glossitis, etc. So vitamins B12 and C are necessary.

Precautions: Abuse of vitamins not only causes the waste of drugs, but also causes an imbalance between vitamins and vitamins, affects the normal function of the body, and can also cause poisoning in severe cases. Long-term blind consumption of large quantities can cause headache, tiredness, irritability, dizziness, loss of appetite, diarrhea, edema, arrhythmia and other adverse reactions.

Vitamin supplementation for the elderly will also increase their resistance, especially for some allergies, eating more vitamins and calcium and phosphorus has great benefits.

Of course, it is to improve the body's immunity, and it is inevitable that the absorption rate of the gastrointestinal tract will decline when people are old, and if you want to supplement vitamins to improve your immunity, this is the best way

Vitamins have a special health significance for the elderly:

1. Vitamin A is a component of pigment, which is mainly used for the prevention and treatment of night blindness, dry eyes and ** sjerosis.

2. Vitamin C, which is water-soluble, mainly exists in fresh vegetables and fruits, can enhance the body's resistance, promote wound healing, prevent bleeding, improve cardiovascular function, vitamin B1, can prevent beriberi, increase appetite, promote diet, digestion, nutrition, neurovitamin E, and delay the aging of the body.