加拿大代写thesis

加拿大代写论文:饮食偏好

加拿大代写论文:饮食偏好

食物偏好通常表现为个人偏好。然而,研究已经证明,影响个人食物选择的不仅是个人决定因素,而且是集体决定因素。集体决定因素包括饮食行为形成的背景。环境、获得食物的机会、个人的财务状况、餐馆提供的费用以及更多的参与都涉及到这一选择。环境这个词通常包含一系列广泛的因素,如家庭、人际关系和同龄人之间的人际环境。它还涉及个人可能没有多少意识或控制的环境,如经济或自然环境。在外部环境中的食物,不再符合个人的决定因素,它现在是一种商品,在市场上,因此政治和社会因素也与经济因素相交叉。

在外部环境中,相互作用的社会经济动态导致昂贵的健康食品对低收入社区变得不易获得(权力,2005)。可能会有人访问限制(帕耶特和shatenstein,2005)。那些价格较低、健康食品的超市可能只在主要运输路线附近,这就导致城市地区的廉价食品难以获得高质量的食品。身体获得食物也是由低收入的影响(雷恩,2004)。

在构建的物质环境和影响人们食物选择的社会环境中,研究其影响意义重大。研究表明,居住在美国的大约200万的人距离超市超过一英里,因此对健康食品有限制(美国农业部,2009)。于是就产生了一个“食物沙漠”,生活在沙漠中的人们可能选择快速方便的快餐。

加拿大代写论文:饮食偏好

Food preferences are usually presented as an individual preference. However research has proved that it is not only individual determinants that influence personal food choices, it is also collective determinants. The collective determinants will include the context in which the eating behavior is formed. The environment, the access to food choices, the financial state of the individual, the costs offered by the restaurants and more are involved in this choice making. The term environment usually encompasses a wide range of factors such as the interpersonal environment that includes the family, relationships and peers. It also involves the environment over which the individual might not have much awareness or control such as the economic or the physical environment. Food in the external environment, no longer fits into the personal determinant, it is now a commodity to be marketed and hence political and social factors also intersect with the economic factors.

In the external environment, the socio economic dynamics of interaction leads to expensive healthy foods becoming less accessible to the low income community (Power, 2005). There could be access restrictions for seniors (Payette & Shatenstein, 2005). Supermarkets that present less expensive and health food might be available only near major transportation routes and this leads urban areas to have less access to high quality food at economical prices. Physical access to food is also affected by low income (Raine, 2004).

In this context of the built physical environment and the social environment affecting the food choices of people, it is significant that the effects be studied. Research indicates that around 2 million of the people living in the United States are more than a mile away from a supermarket and hence have access restrictions to healthy food (US Department of Agriculture, 2009). A ‘food desert’ is hence created and the people living in the food deserts might opt for fast, easily accessible fast food 。