Final answer:
Foods low in calories typically contain high amounts of fiber and water (4). These components are essential for a feeling of fullness, hydration, and aiding in the regulation of digestion and cholesterol levels. Combining these with a balanced diet and exercise is the key to healthy weight loss.
Step-by-step explanation:
The two substances usually found in foods low in calories are fiber and water. Alcohol and fat are high in calories, with fat providing the highest energy content of 9 Kcal per gram. On the other hand, carbohydrates and proteins also provide calories - about 4.3 Kcal and 4 Kcal per gram, respectively. Vitamin C and Vitamin A do not provide calories but are essential nutrients that should be included in a well-balanced diet.
Foods that are high in fiber are often low in calories but contribute to a feeling of fullness, help regulate blood glucose levels, and remove excess cholesterol from the body. Water, although it has no caloric value, is important for hydration and fills the stomach, which can help control calorie intake.
It is essential to combine various food groups, including carbohydrates, proteins, vitamins, and fats, for a balanced diet and overall health. This combination, paired with regular exercise, contributes to sensible weight loss and better health outcomes.