The Role Of B Vitamins Essays - Nutrition, Health, B Vitamins

The Role Of B Vitamins Water-soluble vitamins were collectively called water soluble B in the beginning. When more water-soluble vitamins were discovered, they were referred to as B1, B2, B6, B12 and so on. Later when more vitamins were discovered in both the categories, they were referred as vitamins C, D, E and K. Now, most are known by a word that indicates either chemical nature or function. Some vitamins are synthesized in the body itself by intestinal micro-organisms. Antibiotics and sulfa drugs may destroy these organisms resulting in decreased vitamin synthesis. There are other bacteria which when present in the intestine utilize dietary vitamins for their own use thus causing vitamin deficiency. Vitamins in the diet are bound to protein and fat. During digestion, they get broken down and absorbed. Vitamins present in undigested food are not available to the body. The body requirement of vitamins depends upon several factors. Apart from those mentioned above, people suffering from tuberculosis or high fever require more vitamins and people living in high altitudes and cold regions also have increased vitamin requirement. The B vitamins have a wide and varied range of functions in the human body. Most B vitamins are involved in the process of converting blood sugar into energy. Diets rich in B vitamins are particularly important for pregnant and breast-feeding women and for other people who require more energy, such as athletes and heavy-labor workers. General Deficiencies of Vitamin B Deficiencies of B vitamins are uncommon in the U.S., but when they occur, they usually involve several B vitamins, since many of them come from the same food groups. Alcohol interferes with these vitamins, and some of the physical and mental problems that alcoholics experience may be attributed to a deficiency of B vitamins. Elderly people are also at risk for deficiencies, because of inadequate diets and potential interference with B-vitamin absorption by medications. General Toxicity of Vitamin B Because the B vitamins are water-soluble and eliminated in the urine, toxic reactions from oral administration of most of them are extremely rare. (Exceptions are niacin and B6.) (For specific adverse reactions from deficiencies or high dosage levels, see individual discussions of B vitamins, below). It should be noted that substances known as B15 (pangamic acid) and B17 (laetrile) are neither vitamins nor nutrients; both chemicals are highly dangerous and have no proven nutritional or other value. Deficiencies and Toxicity of Vitamin B1 (Thiamin) Thiamin is essential for converting blood sugar into energy and is involved in metabolic activities in nerves, heart, and muscles and in the production of red blood cells. Thiamin is found in almost all foods, but the best source is pork and good sources are dried fortified cereals, oatmeal, corn, nuts, cauliflower, and sunflower seeds. Recommended RDA is 1.2 mg per day for men and 1.1 mg for women. Supplements for people with normal diets and health are unnecessary. Severe vitamin B1 deficiency, known as beriberi, is rare in the U.S., but can occur in alcoholics, in severely malnourished people, or in those receiving long-term dialysis or intravenous feeding. Symptoms may include visual disturbances, paralysis, staggering, loss of sensation in the legs and feet, psychosis, and congestive heart failure. No toxic effects have been reported for thiamin. Deficiencies and Toxicity of Vitamin B2 (Riboflavin) Like thiamin, riboflavin is important in the production of energy. Some dietary sources are liver, dried fortified cereals, and low fat yogurt. Recommended DRI is 1.7 mg. Supplements for people with normal diets and health are unnecessary. Deficiencies affect the skin and mucous membranes and can cause cracks on the lips or corners of the mouth, eczema of the face and genitals, a burning sensation on the tongue, or eye irritation. Previously, no toxic effects had been reported even from large doses of riboflavin However, one new study indicated that high consumption of vitamin B2 may increase the risk of stomach cancer. (In the same study, vitamins B1, B3, and B6 were protective). Deficiencies and Toxicity of Vitamin B3 (Niacin) Niacin, also known as nicotinic acid, helps break down blood sugar for energy and also acts as a vasodilator, widening blood vessels and increasing blood flow. Dietary sources are mackerel, swordfish, chicken, veal, dried fortified cereals, pork, salmon, and beef liver. Current DRI recommendations are 20 mg.

Top Ways to Get Your Dream Job If You Lack Qualification

Top Ways to Get Your Dream Job If You Lack Qualification Ways to Land Your Dream Job when You Do Not Have Enough Qualification What differentiates the dream job from an ordinary job? Ordinary job is the one that you only get money from and dream job is something that you really like doing and in addition to joy it also brings you income. Most of the time, in order to get the job of you17r dreams, you need to have some extraordinary skills that differentiate you from others. Dream job is what challenges us, gives us an outstanding opportunity to grow and allows us to have a good income at the same time. Very often, something can stand in the way between the job of your dreams and you. In some cases, its five years of job experience and in other cases it can be as simple as knowledge of Power Point. Even though you can rarely negotiate job qualifications, employers may still take you on board if they believe that youre the best person for this position. So, if you hesitate to apply for the job of your dreams just because a couple of bullet points in requirements are missing in your skillset, read and follow t hese top 5 tips and dont let your fear stop you: Prepare Properly A number one thing that you should do before an interview is to research the business and its top people. Study the website, products, press-releases, social media channels and read about the business sphere where company is operating. If you show employer that youre knowledgeable, they will see that you are a quick learner, which would be a big plus. Dress As If You Already Have the Job Although you may not fit all the requirements, you shouldnt show even a trace of doubt. Be confident and let the employer see that you are the person they need. Polish yourself both internally by having the right attitude and externally by wearing good clothes. Show Your Excellence Along with the outstanding cover letter, prepare a memo showing that you understand the greatest challenges that the positions youre applying for entails and how you plan to handle them. Listing the ideas of how you can benefit the company and help them grow their business is also a good idea. Be Passionate, Confident and Honest These are the qualities that hiring managers are looking in employees. Try to show passion, confidence and honesty in balance and you will surely make a good impression on your employer. Ask Clever Questions Ask questions that show the hiring manager that you have done your homework and know about the company and your prospective position a lot. Listen to hiring managers answers clearly and dont hesitate to take the initiative if you feel that its necessary. With enough confidence and strength, you can apply for your dream job even without having 100% of required qualifications. Show your passion and the rest will follow.