Questions: Why should a very-low-calorie diet (800 calories or less daily) be very closely monitored? to ensure provision of essential nutrients to gradually introduce carbohydrates to ensure weight loss drugs are being properly administered

The answer is the first one: to ensure provision of essential nutrients.

Explanation for each option:

1. To ensure provision of essential nutrients: This is correct. A very-low-calorie diet (800 calories or less daily) can lead to nutrient deficiencies if not properly managed. Essential nutrients such as vitamins, minerals, and proteins are crucial for maintaining bodily functions, and a diet with such low caloric intake may not provide adequate amounts of these nutrients. Therefore, close monitoring is necessary to ensure that the individual receives all the essential nutrients required for good health.

2. To gradually introduce carbohydrates: This is incorrect. While managing carbohydrate intake can be important in some diets, the primary concern with a very-low-calorie diet is ensuring that the individual gets enough essential nutrients. Gradually introducing carbohydrates is not the main reason for close monitoring.

3. To ensure weight loss drugs are being properly administered: This is incorrect. The administration of weight loss drugs is a separate issue from the dietary intake itself. While it is important to monitor the use of any medication, the primary reason for closely monitoring a very-low-calorie diet is to ensure nutritional adequacy.

Summary: A very-low-calorie diet should be very closely monitored to ensure the provision of essential nutrients, as such a restrictive diet can easily lead to deficiencies that could harm the individual's health.