One gram of fat contains a specific number of calories.
Recall that one gram of fat contains 9 calories.
Therefore, the correct answer is nine.
The final answer is nin e .
Explanation
Problem Analysis We are asked to determine how many calories are in one gram of fat. We are given four options: nine, two, four, and five.
Recalling Calorie Content From nutritional science, we know that one gram of fat contains 9 calories.
Selecting the Correct Option Therefore, the best answer is nine.
Final Answer The answer is \boxed{{nine}} calories.
Examples
Understanding the calorie content of different macronutrients is crucial for maintaining a balanced diet. For example, if you consume a snack containing 10 grams of fat, you would be consuming 90 calories from fat alone. This knowledge helps in tracking daily caloric intake and making informed food choices to achieve health goals, such as weight management or athletic performance. Knowing that fats are more calorie-dense than carbohydrates or proteins allows for better portion control and dietary planning.