If the body is to remain healthy and function correctly it must have adequate amounts of food containing the essential nutrients. Hunger Hunger may be defined as that feeling of emptiness, weakness or pain caused by a lack of food. It becomes more intense as time passes, until we are able to think of little else but food. For those suffering extreme hunger, relieving the body of this pain is the focus of life.
The determinants of food choice The determinants of food choice 06 June Given the priority for population dietary change there is a need for a greater understanding of the determinants that affect food choice.
This review examines the major influences on food choice with a focus on those that are amenable to change and discusses some successful interventions. Major determinants of food choice The key driver for eating is of course hunger but what we choose to eat is not determined solely by physiological or nutritional needs.
Some of the other factors that influence food choice include: Biological determinants such as hunger, appetite, and taste Economic determinants such as cost, income, availability Physical determinants such as access, education, skills e.
Food choice factors also vary according to life stage and the power of one factor will vary from one individual or group of people to the next.
Thus, one type of intervention to modify food choice behaviour will not suit all population groups. Rather, interventions need Food selection physiological factor be geared towards different groups of the population with consideration to the many factors influencing their decisions on food choice.
Humans need energy and nutrients in order to survive and will respond to the feelings of hunger and satiety satisfaction of appetite, state of no hunger between two eating occasions. The central nervous system is involved in controlling the balance between hunger, appetite stimulation and food intake.
The balance of evidence suggests that fat has the lowest satiating power, carbohydrates have an intermediate effect and protein has been found to be the most satiating The energy density of diets has been shown to exert potent effects on satiety; low energy density diets generate greater satiety than high energy density diets.
An important satiety signal may be the volume of food or portion size consumed. Many people are unaware of what constitutes appropriate portion sizes and thus inadvertently consume excess energy. Palatability Palatability is proportional to the pleasure someone experiences when eating a particular food.
It is dependent on the sensory properties of the food such as taste, smell, texture and appearance.
Sweet and high-fat foods have an undeniable sensory appeal. It is not surprising then that food is not solely regarded as a source of nourishment but is often consumed for the pleasure value it imparts.
The influence of palatability on appetite and food intake in humans has been investigated in several studies. There is an increase in food intake as palatability increases, but the effect of palatability on appetite in the period following consumption is unclear.
Increasing food variety can also increase food and energy intake and in the short term alter energy balance However, effects on long-term energy regulation are unknown.
This includes not only taste per se but also smell, appearance and texture of food. These sensory aspects are thought to influence, in particular, spontaneous food choice. From an early age, taste and familiarity influence behaviour towards food.
A liking for sweetness and a dislike for bitterness are considered innate human traits, present from birth Taste preferences and food aversions develop through experiences and are influenced by our attitudes, beliefs and expectations 9.
Whether cost is prohibitive depends fundamentally on a person's income and socio-economic status. Low-income groups have a greater tendency to consume unbalanced diets and in particular have low intakes of fruit and vegetables However, access to more money does not automatically equate to a better quality diet but the range of foods from which one can choose should increase.
Accessibility to shops is another important physical factor influencing food choice, which is dependent on resources such as transport and geographical location. Healthy food tends to be more expensive when available within towns and cities compared to supermarkets on the outskirts However, improving access alone does not increase purchase of additional fruit and vegetables, which are still regarded as prohibitively expensive Education and Knowledge Studies indicate that the level of education can influence dietary behaviour during adulthood Factors Affecting Food Selection; Factors Affecting Food Selection.
8 August Physiological: Physiological factors, are the factors in which affect our desire and need of food physically.
There are many ways in which this factor can affect our choices of food. Hunger being one of them, and during the time of adolescence, an individual. Influences on Food selection The factors that influence people to select one food over another are Decisions made up of many interrelated factors.
Physiological ¨ Physiological factors are factors that affect the body’s hunger and or appetite for food. Physiological factors affect food selection by queuing the bodyinto what it needs. If the blood sugar is low, the body mightsignal a need for sweet foods. Jan 11, · Healthy Eating and Active Living: Making the Healthy Choice the Easy Choice (English) - Duration: American Cancer Society 8, views.
Physiological factors affect the body’s need and desire for food. If the body is to remain healthy and function correctly it must have adequate amounts of food containing the essential nutrients.
The impact of physiological of food selection and habits amongst individual falls into 3 main categories; Hunger, appetite and nutritional requirement.
The main types of factors are psychological, physiological, social, and economic factors, and each of them influence what choices people make when it comes to food.
Over the past 20 years, teenagers have adopted the habit of consuming a lot of junk food, due to the influence of many economic, psychological, physiological and social factors.