The average daily calorie intake varies depending on factors such as age, sex, activity level, and overall health. However, a common guideline suggests:
- Adult males: about 2,500 calories per day
- Adult females: about 2,000 calories per day
Based on these guidelines, the most commonly referenced average is 2,000 calories for females and around 2,500 calories for males. Therefore, if you're looking for a general average for all adults, 2,500 calories is often used in many contexts.
So, the most suitable answer from your provided options would be 2,500 calories.