vitamin a

Vitamins (combination of two words: Vital Amines) are the complex organic substances essential in small quantities to the metabolism (nutrition) in most animals. These are found in minute quantities in food, in some cases are produced by the body, and also produced synthetically. The body human needs to function properly, so they can grow and develop as it should. Its deficiency in many serious disorders.

Vitamins are divided into two large groups: "fat-soluble vitamins' designated as vitamin A, vitamin D, vitamin E and vitamin K Fat-soluble vitamins, and the 'water', including vitamin C and the group of molecules referred to the vitamin B complex Each has its own special role in the development of the human body.

Vitamin A

Vitamin A, a fat soluble vitamin, plays a large role in eyesight and helps us see in dim light and at night. Vitamin A also is involved in the formation and maintenance of healthy skin, hair and mucous membranes. It is also necessary for proper bone growth, development dental, reproduction and development of epithelial cells (that line any opening to the body, for example, nose, throat, lungs, mouth, stomach, intestines and urinary tract). Vitamin A can be found in eggs, milk, carrots, spinach, sweet potatoes, fish oil (liver, pork, lamb, chicken, turkey or beef), butter, broccoli, apricots, nectarines, melons and vegetables yellow or orange fruits. Deficiency of vitamin A can cause two principal diseases such as night blindness and dryness of the skin.

Vitamin B

Vitamin B itself is a complex of different vitamins, such as: B1, B2, B6, B12, niacin, folic acid, biotin and pantothenic acid. These B vitamins are very important in metabolic activity and in facilitating the red blood cells (which carry oxygen through your body). They also help your body make protein and energy.

The sources of the vitamin B are leafy green vegetables seafood, beans, peas, citrus fruits, whole grains (like wheat and oats), poultry, meat, eggs and dairy products (such milk and yogurt). Some bacteria in our large intestine also prepare some type of vitamin B. Vitamin B can cause the disease "Beri Beri ", cracked lips, weak muscles, malformation of red blood cells, affects normal growth and disturbs the nervous system.

Vitamin C

Vitamin C or ascorbic acid is water soluble, antioxidant vitamin that is vital to the production of collagen, a protein that gives structure to bones, cartilage, muscle and blood vessels. It is important to maintain body tissues such as gums and muscles in good shape and aid in rapid healing of wounds. It also helps protect fat-soluble vitamins A and E and fatty acid oxidation.

Vitamin C is found in citrus fruits (like lemon and orange), cantaloupe, strawberries, tomatoes, broccoli, cabbage and other fruits and vegetables. Deficiency Vitamin C affects the healthy skin, wound healing and can lead to a disease called scurvy, which causes bleeding gums, bruises, bumps coiled hair on the arms and legs, joint pain, muscle weakness, and many other problems.

Vitamin D

Vitamin D is a vitamin soluble regulating bone formation and absorption of calcium and phosphorus in the intestine. It helps control the movement of calcium between bone and blood, and vice versa. It is this vitamin you need for strong bones and teeth. It also helps the body absorb the calcium you need.

Vitamin D is found in oily fish liver, egg yolk, milk and other dairy products fortified with vitamin D. It also occurs in our body, in the presence of ultraviolet light and sunlight.

Vitamin D can cause weak bones and bowed legs (in children). And the excess can cause loss of appetite, weight loss, nausea, headache, depression and deposits of calcium in the kidneys.

Vitamin E

Vitamin E, a fat soluble vitamin, is essential for the inhibition of oxidation in body tissues, red blood cell formation, and also prevents breakdown of body tissues. Maintains body tissues and protects the lungs from being damaged by air pollution. This vitamin is found in whole grains (like wheat and oats), wheat germ, vegetables green leaf, sardines, egg yolk, nuts, bread, cereals and seeds. A deficiency of this vitamin can cause many diseases including cancer, diabetes, heart and Alzheimer's disease.

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