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What is the recommended daily intake of protein based on the average adult diet of 8 700 kJ?

Question

What is the recommended daily intake of protein based on the average adult diet of 8 700 kJ?

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Solution

The recommended daily intake of protein for an average adult is about 50 grams per day. This is based on the reference nutrient intake (RNI) set by various health organizations.

Here's a step-by-step breakdown:

  1. The average adult diet is about 8,700 kilojoules (kJ) per day.

  2. Protein should make up about 10-15% of your total daily energy intake.

  3. To find out how much protein that is, you first need to convert kilojoules to calories because the recommended dietary allowance for nutrients is often given in grams per calorie. 1 kJ is approximately equal to 0.239 calories. So, 8,700 kJ is about 2,079 calories (8,700 x 0.239).

  4. If protein should make up 10-15% of your diet, then it should be about 208-312 calories (10-15% of 2,079).

  5. Since 1 gram of protein has 4 calories, this translates to about 52-78 grams of protein per day (208 ÷ 4 and 312 ÷ 4).

  6. Therefore, the recommended daily intake of protein based on an average adult diet of 8,700 kJ is about 50-78 grams.

Remember, individual protein needs can vary depending on a person's age, sex, weight, and level of physical activity. It's always best to consult with a healthcare provider or a registered dietitian for personalized advice.

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