Daily requirement of zinc in humans is?
**Core Concept**
Zinc is an essential trace element required for various physiological processes, including enzyme function, protein synthesis, and immune response. The daily requirement of zinc in humans is necessary to maintain optimal health and prevent deficiency-related disorders.
**Why the Correct Answer is Right**
The recommended daily intake of zinc varies based on factors such as age, sex, and physical status. The World Health Organization (WHO) recommends a daily intake of 2.5 mg of zinc for adult men and 1.8 mg for adult women. Zinc is crucial for maintaining immune function, wound healing, and protein synthesis. It plays a key role in the activation of enzymes, including carbonic anhydrase, which is essential for maintaining acid-base balance in the body.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it is lower than the recommended daily intake of zinc.
**Option B:** This option is incorrect because it is higher than the recommended daily intake of zinc for adult women.
**Option C:** This option is incorrect because it is higher than the recommended daily intake of zinc for adult men.
**Clinical Pearl / High-Yield Fact**
Zinc deficiency can lead to impaired immune function, delayed wound healing, and impaired growth and development in children. Symptoms of zinc deficiency include hair loss, skin lesions, and impaired taste sensation.
**Correct Answer: C. 15 mg.**