How many grams of nitrogen are contained in a 2,500 kcal diet that provides 15% of the energy as protein?

What would be the approximate weight gain of a person who consumes an excess of 500 kcal daily for one month?

Which of the following is an FDA approved over-the-counter medication for weight loss?
Answer
Leptin
Ephedrine
Benzocaine
Tetrahydrolipostatin

To find out how many grams of nitrogen are contained in a 2,500 kcal diet that provides 15% of the energy as protein, you can follow these steps:

1. Convert the energy provided by protein to kcal:
- 15% of 2,500 kcal = 0.15 * 2,500 kcal = 375 kcal

2. Since 1 gram of protein provides 4 kcal, you can calculate the grams of protein:
- 375 kcal / 4 kcal/g = 93.75 g

3. Nitrogen makes up approximately 16% of protein, so you can find the approximate grams of nitrogen:
- 93.75 g * 0.16 = 15 grams of nitrogen

Therefore, a 2,500 kcal diet that provides 15% of the energy as protein contains approximately 15 grams of nitrogen.

To estimate the approximate weight gain of a person who consumes an excess of 500 kcal daily for one month, you need to consider that 1 pound of body weight is roughly equal to 3,500 kcal. Here's how you can calculate it:

1. Calculate the total excess calories consumed in a month:
- 500 kcal * 30 days = 15,000 kcal

2. Convert the excess calories to pounds:
- 15,000 kcal / 3,500 kcal/pound = 4.29 pounds

So, consuming an excess of 500 kcal daily for one month may lead to an approximate weight gain of 4.29 pounds.

Regarding the approved over-the-counter medication for weight loss, among the options you provided, Ephedrine used to be FDA approved but has since been banned due to safety concerns. As of now, there is no FDA-approved over-the-counter medication solely for weight loss. Therefore, none of the options provided (Leptin, Ephedrine, Benzocaine, and Tetrahydrolipostatin) are FDA-approved weight loss medications.