Vitamins And Their Function In Your Body

Vitamins take on vital functions in our body, but for the most part, they cannot be produced by it ourselves. We take vitamins as provitamins, which are later converted into the active form in our body (for example, beta-carotene becomes vitamin A). There are 13 vitamins in our body – 4 fat-soluble and nine water-soluble.

Fat-soluble vitamins

Vitamins E, D, K and A are readily soluble in fats due to their chemical structure. That is why we only find them in our diet in fatty foods. Except for vitamin K, they can be stored in larger quantities in the body ( liver, depot fat). Short-term supply deficits can be compensated. Fat-soluble vitamins are involved in protein synthesis.

Water-soluble vitamins

Vitamin C, the B vitamins and folic acid use water as a solvent. Except for vitamin B12, the body cannot store them in large quantities. The body cannot compensate for a shortage of intake for a long time. Water-soluble vitamins become co-enzymes in the body, the so-called “helpers of the enzymes”.

Vitamins A, C, E – the antioxidants

Free radicals (oxygen radicals) are continually being produced in the metabolism. Free radicals are an essential signal generator for adaptation processes, but can also lead to damaging chain reactions. These chain reactions lead to cell damage and are responsible for cancer and ageing processes. Antioxidants such as vitamins A, C, and E can “intercept” and neutralize free radicals.

Vitamin A – the “eye vitamin.”

Vitamin A is an indispensable part of the visual process. It is also an antioxidant and free radical scavenger and a protective factor for the skin and mucous membranes. Vitamin A is only found in animal foods but can be formed from the precursor beta-carotene, found in plant foods. Sources of vitamin A are liver, liver sausage, tuna, egg yolks, dairy products, carrots, spinach, pumpkin and apricots. An overdose of vitamin A can have health consequences. Symptoms of overdose include headache, nausea, vomiting, and peeling skin and reddening of the mucous membranes.

Vitamin C – Ascorbic Acid

Vitamin C is a free radical scavenger and an antioxidant. It contributes to the support of the immune function and the development of connective tissue. Sources of vitamin C are citrus fruits, acerola cherries, black currants, sea buckthorn, broccoli, bell peppers, potatoes and cabbage. Vitamin C is often used as a preservative in the food industry (ascorbic acid). Iron absorption from foods is vitamin C promoted. Symptoms of deficiency include fatigue, susceptibility to infection and scurvy.

Also Read: DOES VITAMIN C HAVE THE SAME EFFECTS ON WEIGHT LOSS AS EXERCISE?

Vitamin C Deficiency – Scurvy

Scurvy is known as the seafarer’s disease because it used to be shared among seafarers and was often their frequent cause of death. Scurvy occurs after about 2-4 months due to a vitamin C deficiency. Symptoms include bleeding gums, poor wound healing, muscle wasting, and high fever. In 1754 the ship’s doctor James Lind realized that scurvy could be cured with citrus fruits. In modern societies of civilization, scurvy no longer occurs.

Vitamin E

Vitamin E acts as a radical scavenger and antioxidant in cell membranes, preventing the destruction of the cell walls. Due to its antioxidant properties, vitamin E is essential for athletes to reduce stress-induced tissue damage. The vitamins are supposed to scavenge radicals. An early symptom of a vitamin E deficiency is a shortened life span of the red blood cells, the so-called haemolysis tendency. Good sources of vitamin E are vegetable oils, nuts, soybeans, and eggs.

Vitamin D – The Prohormone

Vitamin D has hormone-like properties. It is essential for bone health, so it is a so-called bone vitamin. The vitamin takes on essential functions in many other tissues. It is made from cholesterol in the skin and kidneys through exposure to sunlight formed and ingested through food.

The uptake through food is, however, less significant. Sources of vitamin D are high-fat marine fish, milk and milk products, butter, egg yolks and mushrooms. Deficiency symptoms are very diverse and range from tiredness and depression to skeletal pain. The bone deformations typical of a vitamin D deficiency occurred mainly in industrialized countries in the 19th century. In Boston at the beginning of the 20th century, around 80% of children from the lower classes had bone deformities.

It was not until 1919 that it was discovered that these symptoms of vitamin D deficiency could be prevented with cod liver oil and increased exposure to sunlight. A vitamin D deficiency is also associated with an increased incidence of type II diabetes. Finland had the highest incidence of type II diabetes until recently due to low exposure to sunlight. For some years now, dairy products have been fortified with vitamin D there, which has reduced the rate of new infections.

Also Read: THE SOLUTION TO SLEEP ATTACKS: VITAMIN D

Vitamin D – Sun Exposure

The synthesis of vitamin D in the skin depends on the time of year and day or the sun’s position. Practical vitamin D synthesis is more challenging to achieve in northern latitudes than in southern latitudes. The reason is the lower angle of incidence of the sun in northern latitudes.

This must be greater than 35 ° in order to stimulate vitamin production effectively. In winter, vitamin D synthesis through the skin is hardly possible in these countries, even at lunchtime. South of the 37 ° latitude (Los Angeles, Sicily), light waves hit the earth’s surface so that a year-round synthesis is possible. Practical tip: “Vitamin D synthesis is possible when your shadow is shorter than you are tall.”Sun exposure for at least 30 minutes is recommended.

B vitamins – Participation in the Metabolism

Numerous B vitamins are involved in the functioning of the metabolism. A deficiency in B vitamins can lead to decreased performance, so they are often added to energy drinks. A supply from everyday food is possible, however. Due to the increased metabolism, the need for athletes is increased.

Vitamin B12 – An Essential B Vitamin

Vitamin B12 is involved in the formation of red blood cells. With folic acid and vitamin B6, vitamin B12 detoxifies the amino acid homocysteine ​​in our body, which is a waste product of the metabolism. Homocysteine ​​is toxic and can damage blood vessels and nerves. Vitamin B12 also helps break down fatty acids and build up protein. Vitamin B12 can only be absorbed with the help of the intrinsic factor formed in the stomach.

If this protein is deficient due to a gene mutation, vitamin B12 absorption is also not possible. Microorganisms can only produce vitamin B12. Sources of vitamin B12 are, for example, animal foods such as meat, fish and milk. It is also found in small quantities in fermented, plant-based foods such as sauerkraut or beer (yeast).

If there is a B12 deficiency, cell division in the bone marrow is disrupted. The result is anaemia and the degeneration of spinal cord areas. B12 deficiency is common among vegans and vegan children; in vegetarians, the B12 supply depends on the proportion of animal products in the diet.

Also Read: VITAMIN D – ADVANTAGES, DEFICIENCIES AND SOURCES

Folic Acid (Folate)

Folic acid is essential for growth, development and metabolic processes as well as for haemoglobin formation. Sources of folic acid are, for example, green leafy vegetables, meat and fruits. The supply of folic acid in Germany is usually too low. An undersupply can lead to increased homocysteine ​​levels and contribute to anemia in the long term. Pregnant women usually take folic acid supplements to prevent damage to embryonic development. Folic acid may increase the protective factor against colon cancer.

Vitamin Supply via Pills?

An adequate supply of vitamins can usually be ensured with a varied diet. Nevertheless, around one in three people in Germany take vitamin supplements. However, vitamin supplements are only recommended in certain situations (such as folic acid for pregnant women). Since overdoses are possible with some vitamins (for example with vitamin A), they should not be consumed in excess.

Vitamins take on vital functions in our body, but for the most part, they cannot be produced by it ourselves. We take vitamins as provitamins, which are later converted into the active form in our body (for example, beta-carotene becomes vitamin A). There are 13 vitamins in our body – 4 fat-soluble and nine water-soluble.

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