سؤال قراءة ستيب محلول — المفردات في السياق (تدريب 6743)

(1) A nutrient is a substance that provides the nourishment essential for growth and the maintenance of life. Examples of nutrients are carbohydrates, proteins, minerals, and vitamins. Manufacturers often add nutrients to improve their products. Foods that have supplementary nutrients are called fortified foods. (2) One reason to add nutrients is to restore what is lost during the production process. These lost nutrients are returned at the end of the process. For example, B group vitamins are usually added back into white flour because they are lost during the milling of the wheat. (3) A second reason is to improve the quality of staple staple foods and help give the health of a population a boost. Foods such as rice, orange juice, eggs, and breakfast cereals, which are consumed by large numbers of people, are fortified to help people meet their nutritional requirements. (4) Manufacturers also add nutrients to foods for promotional promotional reasons. Some food products may have nutrients added to them to make them more appealing to consumers. For example, some bread products have omega 3 added, because this is what customers want to buy even though most people get enough omega 3 through other foods. The word staple in Paragraph (3) is closest in meaning to ……………….