Final answer:
To calculate the protein intake for a person weighing 165 lbs, the formula P = 2w is applied, resulting in 330 grams of protein per day.
Step-by-step explanation:
The question is how to calculate the amount of protein a person should eat daily based on their weight using the formula P = 2w, where w represents the person's weight in pounds. For a person weighing 165 lbs, the calculation would be P = 2 × 165, which equals 330 grams of protein.
This falls within the context of a balanced diet, which also includes fats and carbohydrates along with other essential nutrients and sufficient water for hydration.