The recommended daily energy intake of an adult woman with heavy work is –
**Question:** The recommended daily energy intake of an adult woman with heavy work is –
A. 2200 kcal
B. 2000 kcal
C. 2500 kcal
D. 2050 kcal
**Core Concept:**
The Recommended Dietary Allowance (RDA) is a measure of the daily intake of essential nutrients required by a human body to maintain health and optimal function. For adults, the estimated average requirement (EAR) and the adequate intake (AI) values are used to determine the RDA. The RDA for energy intake (kcal) varies based on factors like age, body weight, height, and activity level.
**Why the Correct Answer is Right:**
The correct answer (C) is 2500 kcal because it falls within the range of the Estimated Average Requirement (EAR) for energy intake for adult women, which is approximately 2000-3000 kcal. The choices A (2200 kcal), B (2000 kcal), and D (2050 kcal) are either lower than the EAR or higher, thus not representing an optimal energy intake for an adult woman with heavy work.
**Why Each Wrong Option is Incorrect:**
A. 2200 kcal is higher than the EAR, which may lead to weight gain and other health issues.
B. 2000 kcal falls below the EAR and may result in weight loss and fatigue.
D. 2050 kcal is still higher than the EAR and may lead to similar health issues as choice A.
**Why the Correct Answer is Right:**
The correct answer (C) 2500 kcal falls within the EAR range, ensuring that the individual maintains a healthy weight and has sufficient energy to perform heavy work tasks.
**Core Concept:**
The Estimated Average Requirement (EAR) is the average daily dietary requirement for essential nutrients that meets the needs of half the population (those who consume this amount without experiencing either deficiency or excess) to maintain health.
**Why Each Wrong Option is Incorrect:**
A. 2200 kcal is higher than the EAR, which may lead to weight gain and other health issues.
B. 2000 kcal falls below the EAR and may result in weight loss and fatigue.
D. 2050 kcal is still higher than the EAR and may lead to similar health issues as choice A.
**Core Concept:**
The Estimated Average Requirement (EAR) for energy intake varies based on factors like age, body weight, height, and physical activity level.
**Why Each Wrong Option is Incorrect:**
A. 2200 kcal is higher than the EAR, which may lead to weight gain and other health issues.
B. 2000 kcal falls below the EAR and may result in weight loss and fatigue.
D. 2050 kcal is still higher than the EAR and may lead to similar health issues as choice A.