Difference between revisions of "Team:Paris Bettencourt/Background"
Jeanbcaron (Talk | contribs) |
|||
Line 8: | Line 8: | ||
<br><br>[give some numbers about malnutrition in India]</font> | <br><br>[give some numbers about malnutrition in India]</font> | ||
+ | |||
+ | <br> | ||
+ | |||
+ | <h2>A Tour of the Deficiencies and Deficiencies Related Disorders around the world</h2> | ||
+ | <br> | ||
+ | <b>Vitamin A deficiency (VAD) </b> | ||
+ | <br>is, along with iron, iodine and zinc deficiencies, one of the most prevalent and severe micronutrient deficiencies in the world. | ||
+ | <br> | ||
+ | People whose diets are mostly based on starchy foods like rice are especially at risk of VAD, as these foods do not contain retinol (vitamin A) or provitamin A (carotenoids). | ||
+ | <br> | ||
+ | Symptoms of VAD include xerophthalmia (extreme dryness of the eyes), night blindness, retinal degeneration, cancer, impaired immune response, birth defects and death. | ||
+ | <br> | ||
+ | 13.8 million children have some degree of vision loss related to VAD. | ||
+ | It is estimated that 250,000,000 preschool children have a VAD. Of those 250 million, 500,000 become blind every year. | ||
+ | Half of the children who become blind die within 12 months. | ||
+ | <br> | ||
+ | IMAAAAAGE | ||
+ | <br><i>(Highest prevalence of vitamin A deficiency are reported in regions of Africa and South-East Asia.)</i> | ||
+ | <br> | ||
+ | |||
+ | In India an estimated 2 million people die every year because of VAD related diseases. The most affected states are those in the south.<br> | ||
+ | bibliography:<br> | ||
+ | Potential impact and cost-effectiveness of Golden Rice Alexander J. Stein1 , H.P.S. Sachdev2 & Matin Qaim October 2006 | ||
+ | <br><br><br> | ||
+ | |||
+ | <b>Iron Deficiency</b> | ||
+ | |||
+ | Iron deficiency is the most common deficiency in the world. | ||
+ | Disability adjusted life year (DALY) | ||
+ | |||
+ | IMAGEEEEEE | ||
+ | fewer than 9,250 | ||
+ | 9,250–16,000 | ||
+ | 16,000–22,750 | ||
+ | 22,750–29,500 | ||
+ | 29,500–36,250 | ||
+ | 36,250–43,000 | ||
+ | 43,000–49,750 | ||
+ | 49,750–56,500 | ||
+ | 56,500–63,250 | ||
+ | 63,250–70,000 | ||
+ | 70,000–80,000 | ||
+ | more than 80,000 | ||
+ | <br><br> | ||
+ | The main cause of iron deficiency is inadequate intake. | ||
+ | Symptoms of iron deficiency include fatigue, dizziness, hair loss, weakness, pica, anemia and thrombocytosis. | ||
+ | <br> | ||
+ | A simple way to avoid iron deficiency-related disorders is to eat iron containing food like red meat, poultry and insects.There are also non-heme sources of iron like lentils, beans and tofu, but iron from these sources have reduced bioavailabilities. | ||
+ | <br> | ||
+ | <b>Phytic acid is a saturated cyclic acid<b> which has a strong affinity for important minerals such as calcium, iron and zinc. Bound minerals form an insoluble precipitate that is far less absorbed in the intestines. | ||
+ | It is a major issue for people whose diet is mainly based on foods that contains phytic acid. Rice contains phytic acid and is consumed as a staple food in India and in east Asia, worsening the deficiencies status in those countries. | ||
+ | |||
+ | <br><b>B12 deficiency Cobalamin</b><br><br> | ||
+ | |||
+ | |||
+ | B12 deficiency can cause severe and irreversible damage to the brain and nervous system. Symptoms include fatigue, depression and poor memory. Deficiency can also cause psychosis. | ||
+ | <br> | ||
+ | |||
+ | The deficiency is most commonly due to the lack of b12 sources in the alimentation. B12 is only produced by bacteria and is absorbed by animal by a variety of strategies. Fish, meat, eggs, milk and milk product all contains b12 in quite high levels. | ||
+ | Very few non animal sources of b12 exist and this puts populations like vegetarians and vegans at risk of deficiency. | ||
+ | <br> | ||
+ | In India, cultural and socio-economic conditions are allowing the deficiency to spread (80% of the | ||
+ | 51.1% of pregnant Indian women (from an urban south Indian location) had low plasma B12 levels. Low levels of B12 during pregnancy can also lead to birth defects. | ||
+ | <br> | ||
+ | Vitamin B12 Intake and Status in Early Pregnancy among Urban South Indian Women | ||
+ | <br><br><br><br> | ||
+ | bibliography | ||
+ | Samuel T.M.a, f · Duggan C.b, d · Thomas T.a · Bosch R.c · Rajendran R.a · Virtanen S.M.e, f · Srinivasan K.a · Kurpad A.V.a | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
<br><br>The FAO reports that more than half the adults have a BMI under 18.5 kg/m2 in the states of Karnataka, Gujarat, Madhya Pradesh and Orissa, due to malnutrition. The states of Arunachal Pradesh, Maharashtra Andhra Pradesh are also shown to have extremely poor nutritional status. | <br><br>The FAO reports that more than half the adults have a BMI under 18.5 kg/m2 in the states of Karnataka, Gujarat, Madhya Pradesh and Orissa, due to malnutrition. The states of Arunachal Pradesh, Maharashtra Andhra Pradesh are also shown to have extremely poor nutritional status. |
Revision as of 20:14, 17 September 2015