Question

1. Nutrition is a broad field that involves the foods you consume, the nutrient content of those foods, and how those foods and their nutrients affect your health and wellness. Health effects can include how you feel on a daily basis, as well as your risk for certain diseases in the future.

Choose the option below that does not describe the science of nutrition.

A.Many studies have been conducted on the association between certain types of cancer and diet and, therefore, these links are well-understood.

B.Matters surrounding global food supply and food production are integral parts of the study of nutrition.

C.Nutrition science involves the study of the digestion and absorption of food.

D. Recent focus in nutrition science has shifted to the prevention of conditions like heart disease and diabetes.

2. Macronutrients are important sources of energy for the body. These include carbohydrates, protein, and fat, and are needed in relatively large amounts in the diet. Some foods contain only one macronutrient, but most foods contain a combination of these nutrients.

Choose the option below that is not a source of macronutrients.

A.vitamin C supplement

B. parmesan cheese

C. olive oil

D. whole-wheat bread with butter

E. grilled steak

3. Dietary Reference Intakes are a set of guidelines intended to help identify how much of each nutrient is needed. Following these guidelines may help prevent deficiency diseases, reduce the risk of chronic disease, and limit risk of nutrient toxicity.

From the statements below, choose the one that correctly describes one of the Dietary Reference Intakes.

A. The Recommended Dietary Allowance (RDA) represents the average amount of a nutrient needed daily by half the healthy individuals in a particular age or gender group.

B. The Estimated Energy Requirement (EER) helps predict energy needs from food, but does not take physical activity into account.

C. If a person reaches a Tolerable Upper Intake Level (UL) for the day, he or she is very likely to experience symptoms of toxicity from that nutrient.

D. The Adequate Intake (AI) is used when the RDA is not available.

There are three different questions with three different answers. Please answer all three questions.

Answer 1

Please find the answers and explanation below:

1. Nutrition is a broad field that involves the foods you consume, the nutrient content of those foods, and how those foods and their nutrients affect your health and wellness. Health effects can include how you feel on a daily basis, as well as your risk for certain diseases in the future. Choose the option below that does not describe the science of nutrition.

Answer: B. Matters surrounding global food supply and food production are integral parts of the study of nutrition

Explanation: Nutrition science mainly is focussed on the foods, their nutrition content and the effect of food on an individual's health. Nutrition science deals with the nutrients and its relationship with growth, metabolism, absorption and their effect on the health system, and not about the production of food or the global supply. All the options except B, are correct regarding the science of nutrition.

2. Macronutrients are important sources of energy for the body. These include carbohydrates, protein, and fat, and are needed in relatively large amounts in the diet. Some foods contain only one macronutrient, but most foods contain a combination of these nutrients. Choose the option below that is not a source of macronutrients.

Answer: A. Vitamin C supplement

Explanation: Macronutrients are the nutrient required in large amounts by the body and include carbohydrates, fats and proteins. Micronutrients are the nutrients required in small amounts by the body and include nutrients such as vitamins. Therefore in the above question except for option A, all the other options include macronutrients. Vitamin C is considered as a Micronutrient.

3. Dietary Reference Intakes are a set of guidelines intended to help identify how much of each nutrient is needed. Following these guidelines may help prevent deficiency diseases, reduce the risk of chronic disease, and limit the risk of nutrient toxicity.

From the statements below, choose the one that correctly describes one of the Dietary Reference Intakes.

Answer: D. The Adequate Intake (AI) is used when RDA is not available.

Explanation: Adequate intake can be defined as the average daily intake recommendation which is based on the observation or experimentally determined approximated values. It is used whenever the Recommended Daily Allowance cannot be determined.