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importance of human nutrition
The importance of food and nutrition
importance of human nutrition
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Along with the development of biotechnology, there are more and more researches related to biofortification. Biotechnologists have already discovered how to strengthen the features of crop plants to enhance their nutritional value. In the 21st century, the advancement of nutritional health is one of the considerable issues because of the constantly rising and aging world population (Blancquaert et al., 2014). The meaning of fortification is to increase some essential nutrients in a food deliberately, such as vitamins and minerals (including trace elements), in order to improve the nutritional quality of food provision and to supply public health benefits at a minimum of health risks. While biofortification refers to the process of improving …show more content…
The aim is to make plant foods more nutritious while plants are growing up without adding nutrients. As a result, biofortification is a tremendous possibility for handling micronutrient deficiencies in the developing world (Global Farmer Network™, n.d.). Folate deficiency which is influencing billions of people in the world is a serious and underrated problem of micronutrient malnutrition. Policies are being adjusted to confront folate deficiency in many countries, mostly by using biofortification technology to fortify foods with folic acid (Blancquaert et al., 2014). There is another study that shows biofortification being a new option to rival the deficiencies of vitamin A, iron and zinc. Scientific evidence and predictive cost-benefit analyses demonstrate that biofortification is technically achievable without affecting agricultural productivity and vital in medical equipment for managing micronutrient deficiencies (Nestel et al., 2006). Thus it can be seen why biofortify food is …show more content…
There are 47% of pre-school children, 30% of menstruating women and 42% of young, pregnant women are suffering from iron deficiency. Vegetarians and vegans also have a opportunity of iron deficiency. Iron, which is a fundamental mineral, is a main element of red blood cells. If people suffer iron deficiency, the most ordinary consequence is anemia. The symptoms of anemia are usually weakness, tiredness, impaired brain functionand weakened immune system (Bjarnadotti, 2015). Zinc deficiency was first been discovered in 1961, being obvious to be a significant malnutrition problem in recent. Infants, children, adolescents, pregnant, lactating women and elderly are the groups at high risk of zinc deficiency. For young children and teenagers, they need lots of zinc during growth. For pregnant and lactating women, they demand more nutrition to nurture new born baby. A healthy human generally absorbs zinc around 107 µmol/day to 232 µmol/day. Zinc is widespread in cells and the character of it in human body can be divided into three broad categories: namely catalytic, structural and regulatory functions. The people who lack of zinc will affect their organ systems such as epidermal, gastrointestinal, central nervous, immune, skeletal, and reproductive systems (Roohani et al., 2013). In 1920, vitamin A deficiency was generally known between destitute people around the world
Inadequate iron stores in the blood cause iron deficiency anemia. Iron is needed for the production of hemoglobin needed for red blood cells. Hemoglobin is important in the transport of oxygen to the body tissues. In the United States, 10-30% of the entire population suffers from iron deficiency anemia. Women are more likely to be anemic because of poor eating habits and blood loss during menstruation. Thus, many women enter pregnancy with reduced iron stores or some level of anemia. According to multiple studies on anemia and pregnancy o...
The various activities of human beings affect adversely all environments where the plants, the animals and the humans live (Kaya et al., 2002). The numbers of chemicals which are the most important group of environmental pollution were limited to a few thousand until the beginning of this century and the majority part of that was constituted by plants, animals and mineral origin accounted for natural ingredients. The production of the chemicals which were 7 million tons in 1950 is estimated to reach 400 million tons today. On the one hand consists of hazards, on the other hand increasing quantities of usage of requirements for the modern living that has increased the importance of the determination of threshold limits of chemicals before and after the production (Utku, 2008).
Anemia is defined as a condition in which the blood is deficient in red blood cells, hemoglobin, or both or deficient in total volume. Iron deficiency anemia is the lack of iron to form normal red blood cells. Iron is imperative for almost all organisms because of its ability to donate and accept electrons with relative ease (Pantopoulos et al., 2012). Iron is required for cellular metabolic functions, oxygen carrying proteins, and cell growth and development. Those affected the most by iron deficiency anemia are children, women, and obese adults. The causes of it can range from low iron absorption to blood loss. Maintaining iron homeostasis is important to the well being of humans because iron can be toxic. The main regulator of iron is hepcidin, which is a small peptide hormone produced by the liver (Tussing-Humphreys et al., 2012). There are treatments for iron deficiency anemia, however, they all have restrictions.
The past twenty years have seen rise to a new burgeoning scientific field: genetically modified foods. During the plant breeding process, geneticists interfere with the reproduction and modify the genes of the new seedling by introducing a fragment of DNA from another organism that possesses the desired trait. With genetic modification, scientists can increase the pest, herbicide, cold, and drought tolerance so that the crop can survive in harsher climates. In some cases, the nutritional value can even be increased (Ulrich 9). Despite the obvious benefits of more nutritious foods and crops that are hardier and more resistant to harsher climates, there are some concerns surrounding GM foods. Each new alteration can cause an unforeseen allergic reaction, negate the effects of antibiotics, or potentially cause some adverse effects to the environment (Falkner 101). Every newly developed GM food must be tested on a case by case basis as there is no universal method that determines the safety of all modified components. As a result, long term effects of ingesting food with altered material are unknown.
In a healthcare perspective, food has various concepts that determine the overall well-being of an individual, depending on the type, the production and the nutrition value. Land provides food to the human beings in the form of seeds, fruits, leaves, and stems that constitute natural diets and nutrients. The progress from the past to the current world has experienced environmental changes, the evolution of humankind, and technological developments and innovations that have influenced food production systems to move away from the indigenous to genetically modified foods. Due to the importance of indigenous food in providing a health and sustainable food security, the contemporary
Iron deficiency causes the psychomotor development degradation, mental development disorder (Wirth et al., 2009), reduced the productivity and immune function, risked pregnancy causes premature delivery, and resistance to the cold temperature. Thus, the strategies to reduce iron deficiency are significantly necessary to improve health and welfare. The efforts that can be undertaken to diminish iron deficiency are providing a diversity of food, food supplement, food fortification, and biofortification. However, the food diversity is ineffective for implementing in the developing nations which depend on the local food product that often limited in variety and have low income. Likewise, food fortification and supplementation are not applicable strategies in the underdeveloped countries because costly. Furthermore, regarding iron deficiency, food fortification is not suitable because of the most soluble and absorbable iron compounds, for example, FeSO4 is tasteless, while the non-soluble iron compounds are not bioavailable or poorly absorbed (Wirth et al., 2009). Hence, iron biofortification, the strategy increasing the micronutrient contents in the edible part of foods, reducing the concentration of anti-nutrient and improving the nutrient absorbing capability, seems
According to scientists, genetically engineering crops contributes to their quality. Crops that have been genetically modified to have a particular trait can decrease the amount of herbicides needed for growing that crop. Additionally, genetically modified (GM) crops can help third world countries, where malnutrition is common. For example, to help diminish nutrient deficiencies in developing countries, “plans were underway to develop a golden rice that also has increased iron content”(Whitman 2). In addition, GM crops can be modified to be able to “withstand the environmental challenges of drought, disease, and insect infestation” (Swenson 1). Growing GM crops can also result in fruits and vegetables that stay fresh for a prolonged period of time and taste better.
Vitamin A is an organic compound that is needed in small amounts in the human body; however a deficiency in this micronutrient can lead to problems and illnesses (3). The vitamin is found naturally in many plant and animal foods in the forms of retinal in animals and carotene in plants (3). Retinal pigments that are very important for night vision are produced by Vitamin A; the vitamin is also important in maintaining the strength of epithelial tissues (5). Without proper amounts of Vitamin A, the outer lining of the eyeball becomes dry and wrinkled, leading to redness and inflammation and, which brings potential of blindness...
Marginal zinc deficiency: approximately 2 billion people worldwide suffer dietary zinc deficiency. It is now acknowledged that milder zinc deficiency causes some health problems, particularly in children who are living in developing countries. The experimental studies proved the role of zinc supplementation to treat marginal zinc deficiency that causes general weakness and impaired growth in children.
As the population of the world increases, so does the need for food. This population increase is going to put a strain on the food available as well as other resources. The resource strain created by the increased population has gathered the attention of both researchers and academics alike. Such theorists have created many ways to remedy this food strain through means of altering our foodways to be less wasteful and more sustainable, discovering new or modifying existing foodstuffs that are easier to grow and are more nutritious, and also creating new, more efficient agricultural methods and equipment. One of these ways, however, has been at work recently. There has been a global trend of discovering and consuming “superfoods,” foods that
Anemia is a global concern that impacts all individuals and nearly half of the anemic cases are caused from iron deficiency. Iron deficiency anemia is most prevalent in children, pregnant, and nonpregnant women. Iron deficiency is caused from inadequate iron intake and absorption, increase iron requirements for growth, or from excessive iron loss (Pasricha, Drakesmith, Black, Hipgrave, & Biggs, 2013). Iron plays a crucial role in hemoglobin synthesis. With low iron, red blood cells have reduced oxygen-carrying capacity causing anemia. Symptoms include fatigue, weakness, pallor, and shortness of breath (Burchum & Rosenthal, 2016). If left untreated, there is a risk for organ damage, or ischemia, due to worsening anemia. Treatment must be focused on restoring iron to the body and replenish iron stores (Schrier & Auerbach, 2018). Children need iron for brain development to improve cognitive, psychomotor, and physical development. Long term iron deficiency in children can cause irreversible damage (Pasricha et al., 2013).
Iron Deficiency Anemia affects millions of individuals across the world. This disease strikes many more women than men and has harmful effects on all who suffer from this deficiency that causes oxygen-carrying capacity to decrease. The causes can vary amongst different groups, but the aggravating symptoms remain constant. Much of the research on Iron Deficiency Anemia concentrates on not only the treatment of this disease, but also the prevention of it. To attain a better understanding of how to treat this problem, one must clearly know what Iron Deficiency Anemia means, what causes this disease, the effects of it, and finally how to cure it.
Any condition that affects the blood can produce systemic effects in all the bodies systems. These effects can produce a host of symptoms that can make diagnosing the primary underlying condition very difficult. This difficulty is illustrated by the nearly two hundred thousand deaths globally each year from iron deficient anemia alone (Collaborates, 2015). However, more than base mortality rates have to be considered when assessing the true impact of anemia on public health. For those with prolonged undiagnosed cases of mild to moderate anemia the long term effects to their health are hard to calculate. New understanding of the mechanisms of cellular systems has led to advancements in identification and treatment of anemia. Each advancement is another step in understand a condition that was first identified in humans over four thousand year ago (Biology & University of Otago Medical School, 1996). With over one billion people affected by anemia worldwide it is understandable how the prevalence of this condition could be viewed as an epidemic that affects the overall prolonged health of all societies (Lancet,
New opportunities and challenges of human health are presented by the application of biotechnology to food. Biotechnology helps improve the quality and nutrition of foods consumed by people,this helps their health. Foods produced through biotechnology has been around for more than 15 years but people are still debating about how safe the food is. Biotechnology still have to plays its role by increasing agricultural productivity,especially in light of climate change. I believe that biotechnology is still going to help better th nutritional value of food. It can also assist farmers to increase their productivity so that they can feed their families and many people across the globe. The whole world should be using the food biotechnology because it has the ability to change the world,it can be to end world hunger .
Keener, K., Hoban, T. and Balasubramanian, R. 2014. Biotechnology and its applications. [online] Available at: http://www.ces.ncsu.edu/depts/foodsci/ext/pubs/bioapp.html [Accessed: 11 Apr 2014].