Protein requirment in an adult male per day –
**Core Concept**
Protein requirement in adults refers to the daily intake of essential amino acids necessary for maintaining and repairing body tissues, including muscles, bones, and organs. The recommended dietary allowance (RDA) for protein varies based on factors such as age, sex, weight, and activity level.
**Why the Correct Answer is Right**
The World Health Organization (WHO) recommends a daily protein intake of 0.8 grams per kilogram of body weight for adult males who are sedentary. This is because protein is essential for maintaining muscle mass and bone health, and a deficiency can lead to muscle wasting and osteoporosis. The daily protein requirement is estimated to be around 56 grams for an average adult male weighing 70 kilograms. This requirement can increase with physical activity, such as in athletes or individuals with high energy expenditure.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify the correct protein requirement for an adult male.
**Option B:** This option is incorrect because it is not supported by scientific evidence and does not take into account the individual's activity level or body weight.
**Option C:** This option is incorrect because it is too high and may lead to excessive nitrogen waste and other health problems.
**Clinical Pearl / High-Yield Fact**
A useful mnemonic to remember the daily protein requirement is "0.8 grams per kilogram of body weight" can be broken down as "8 ounces of protein per 100 pounds of body weight". This can help students recall the correct protein requirement for adult males.
**Correct Answer:** D.