chicken breast, roasted, no skin
Water is a nutrient that does not provide calories.
Fat is the nutrient that provides the highest number of calories (9 per gram).
Celery
Alcohol has a calorie value of 7 calories per gram but, contains 0 macronutrients (Fat, Carbs, Protein) and 0 micronutrients (Vitamins and minerals). Alcohol is often referred to as "empty calories."