3.1 Describe the term organic food - NSC Consumer Studies - Question 3 - 2017 - Paper 1

Emulsifiers are substances that help to mix two liquids that usually don't combine well, such as oil and water. They stabilize emulsions by reducing the surface tension at the interface of the liquid phases, allowing for a consistent texture in products like mayonnaise and salad dressings.

Antioxidants are additives that help to prevent the oxidation of food, which can lead to spoilage and off-flavors. They extend the shelf life of products by slowing down the reaction of food components with oxygen, thereby maintaining quality and freshness.

Irradiation involves exposing food to ionizing radiation, which helps to eliminate microorganisms and pests that can cause spoilage. This process delays decay and extends the shelf life by significantly reducing the risk of foodborne diseases and preserving the nutritional quality of the food.

Home-grown or community food gardens provide access to fresh produce, which enhances food security by reducing dependency on external food sources. By growing their own food, individuals can lower their grocery costs and achieve a more nutritious diet. These gardens can foster a sense of community, where people can share resources, knowledge, and support. Additionally, they can serve as educational platforms for sustainable farming practices, enabling participants to learn about food production and healthy eating.

Produce from home-grown gardens provides essential nutrients and vitamins that are crucial for supporting the immune system of individuals living with HIV/Aids. Fresh fruits and vegetables, rich in antioxidants, vitamins, and minerals such as Vitmain C, A, and zinc, can help strengthen the immune system, reduce inflammation, and improve overall health. Moreover, community support from these gardens can enhance emotional well-being, providing individuals with a sense of belonging and purpose.

Implementing a sugar tax on sugar-sweetened beverages can discourage excessive consumption of these products, which are linked to obesity and Type 2 diabetes. Higher prices may lead consumers to choose healthier options, thereby reducing their overall sugar intake. This helps to maintain stable blood glucose levels, which is essential for managing diabetes effectively, as well as promoting a healthier lifestyle.

The salad is not suitable for a person suffering from anemia because it is low in iron content, which is essential for producing hemoglobin in red blood cells. Without adequate iron, individuals may experience fatigue and weakness, which are common symptoms of anemia. In addition, if the salad lacks vitamin C-rich ingredients, the absorption of non-heme iron from plant sources may be hindered.

The nutrient content of the salad can be deemed suitable for a person suffering from coronary heart disease as it is low in saturated fat and cholesterol, which are critical factors in managing heart health. Moreover, the high fiber content aids in lowering cholesterol levels and improving heart function. However, it is important for individuals to monitor portion sizes and consider the sodium content, as excess sodium can negatively impact heart disease management.