Vitamns

Vitamin Overview
All natural vitamins are organic food substances found only in living things, that is, plants and animals. With few exceptions, the body cannot manufacture or synthesize vitamins. They must be supplied by the diet or in dietary supplements. Vitamins are essential to the normal functioning of our bodies. They are necessary for growth, vitality, health, general well being, and forthe prevention and cure of many health problems and diseases.
HOW THEY WORK: A lot of people think vitamins can replace food, they cannot! In fact, vitamins cannot be assimilated without ingesting food. That is why they should be taken with a meal. Vitamins regulate metabolism, help convert fat and carbohydrates into energy, and assist in forming bone and tissue.
Vitamins can be used over andover, and only tiny amounts are needed to replace those that are lost. Nevertheless, most vitamins are essential in the diet because the body does not produce enough of them or, in many cases, does not produce them at all.
Thirteen different vitamins have been identified by nutritionists: A, eight B-complex vitamins, C, D, E, and K. Some substances, such as carnitine and choline, behave likevitamins but are made in adequate amounts in the human body.
Vitamins were originally placed in categories based on their function in the body and were given letter names. Later, as their chemical structures were revealed, they were also given chemical names. Today, both naming conventions are used.
Vitamin A
This vitamin plays a really big part in eyesight. It's great for night vision, like whenyou're trick-or-treating on Halloween. Vitamin A helps you see in color, too, from the brightest yellow to the darkest purple. In addition, it helps you grow properly and aids in healthy skin.
Which foods are rich in vitamin A?
milk fortified with vitamin A
liver
orange fruits and vegetables (like cantaloupe, carrots, sweet potatoes)
dark green leafy vegetables (like kale,collards, spinach)
http://kidshealth.org/kid/stay_healthy/food/vitamin.html#a_Vitamin%20A

B VITAMIN
B vitamins are essential for growth, development, and a variety of other bodily functions.
B vitamin is necessary for the proper functioning of the body.
Principal functions of B vitamin:
• Produce energy by food
• Involved in cellular growth and division.
• Produce many hormones, enzymes andproteins important for our body.
• Health care of the heart and arteries.
• Maintains good condition of the nervous system.
• Health care of the mind.
• Strengthens the immune system
Where do we get the vitamin from?
B vitamins are found in plant and animal food sources. In meat, chicken, pork and eggs.
Vegetables are particularly rich in whole grains (rice, wheat, oats, etc). Legumes(soybeans, lentils, etc), or nuts. Beer yeast is a major source of vitamin b and wheat germ.
“DIFERENT B VITAMINS”(References)
• Vitamin B1 (thiamin) and vitamin B2 (riboflavin) help the body produce energy and affect enzymes that influence the muscles, nerves, and heart.
• Vitamin B3 (niacin) has a role in energy production in cells and helps keep the skin, nervous system, and digestive systemhealthy.
• Vitamin B5 (pantothenic acid) influences normal growth and development.
• Vitamin B6 (pyridoxine) helps the body break down protein and helps maintain the health of red blood cells, the nervous system, and parts of the immune system.
• Vitamin B7 (biotin) helps break down protein and carbohydrates and helps the body make hormones.
• Vitamin B9 (folic acid) helps the cells in the bodymake and maintain DNA and is important in the production of red blood cells.
• Vitamin B12 (cobalamin) plays a role in the body's growth and development. It also has a part in producing blood cells, nervous system function, and how the body uses folic acid and carbohydrates.
Deficiency of certain B vitamins can cause anemia, tiredness, loss of appetite, abdominal pain, depression, numbness...