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Assigment 3-1 - Assignment Example

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Globally, outputs per hectare, which constitute slightly above half of the food people take if the grain that is fed to domestic animals is…
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Running Head: FOOD AND NUTRITION Discuss How Global Food Production and Population Has Changed According to Southgate, agricultural yields have escalated courtesy of Green Revolution, besides other developments in technology. Globally, outputs per hectare, which constitute slightly above half of the food people take if the grain that is fed to domestic animals is included, rose to about 3.0 metric tons by around the end of the 1990s decade. This was double the mean input in the period of early 1960s. Basically, the growth in yield caused food supplies to rise at a quicker rate than the demand over this period.
On the other hand, human population increased from 2.47 billion in the year 1950 to 6.06 billion in the year 2000. Today, the human population is estimated at 6.7 billion. (Soulgate, 2009)
Also, per capita food (grain) production increased by about 30% from 1950 through 1970. However, from 1971 through 1984 the trend began to change. Over the period from 1984 to 2005, production of grain declined by more than 7% according to Chiras. (Chiras, 2009)
Identify how many people are chronically hungry
As per the estimates by the Food and Agriculture Organization of United Nations, mean intake in calories per person rose over the period from 1961 to 2008. The number of persons that are chronically undernourished declined from around 918 million in the year 1970 to 852 million in the year 2005. (Miller and Spoolman, 2008) In 2009, according to World Food Programme, approximately more than one billion people are chronically hungry. (wfp.org, 2009)
Why Hunger Persists in the World of Plenty
In this globe, there is enough food for everybody. Hunger persists, though. The reason why hunger continues to cripple the globe can be attributed to two things. Firstly, people cannot afford to purchase the available food. Secondly, most people cannot access the available food. (Forbes, 2009)
Identify Health Risks of Undernourishment, Poor Diet and Overeating
Undernourishment may be evident when few vital nutrients are consumed or using them in a more rapid manner than they are replaced. Consequences may differ in teenagers, children, and adults. For instance; it can cause death to anybody, inadequate intake if proteins can cause Kwashiorkor in infants or Marasmus if there is inadequate intake of all nutrients in infants.
Poor diet refers to malnutrition and it occurs when the human body does not get enough minerals, vitamins and other nutrients. The ramifications of poor diet range from death, to many other diseases (like goiter due to lack of iodine minerals and to obesity due to over-nutrition).
Overeating may be taken to refer to over-nourishment and it relates to taking excess of essential nutrients and not having or taking enough exercise. Consequences may be many; from the negative effect on body senses like taste, sight or even smell to obesity. (Gilman, 2007)
References:
Chiras, Daniel D. (2009). Environmental Science. Jones & Bartlett Publishers. Edition 8, revised.
Forbes, James. (2009). Hunger In A World of Plenty. Retrieved October 13, 2009
http://www.kintera.org/atf/cf/%7B6D00C385-AB39-4704-B4E8- 1BDB23B21F6A%7D/FHF%20HUNGER.PDF
Gilman, Sander L. (2007). Diets and Dieting: A Cultural Encyclopedia. Routledge. Edition illustrated.
Miller, G. Tyler and Spoolman, Scott. (2008). Sustaining the Earth. Cengage Learning. Edition 9, illustrated.
Southgate, Douglas. (2009). Population Growth, Increases In Agricultural Production And Trends In Food Prices. Retrieved October 13, 2009
http://www.ejsd.org/public/journal_article/13
wfp.org. (2009). Number Of Chronically Hungry People Tops 1bn. Retrieved October 13, 2009
http://www.wfp.org/content/number-chronically-hungry-people-tops-1bn Read More
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