Which of the following cooking methods is considered the healthiest?

Baking is considered the healthiest cooking method among the options provided because it typically requires little to no added fats or oils, which can significantly reduce the calorie and fat content of the food. This method allows for the preservation of nutrients while also enhancing the natural flavors of the ingredients. Baking is also versatile and suitable for a wide range of foods, including vegetables, lean meats, and whole grains, making it a recommended approach for those aiming to maintain a balanced and nutritious diet.

In contrast, frying tends to add unnecessary fats and calories, often leading to a higher overall calorie content in dishes. Boiling food in heavy sauces can significantly increase the caloric load and may involve additional unhealthy ingredients. Microwaving with oil can lead to increased fat intake as well and may not yield the same health benefits as other cooking methods. Therefore, baking stands out as the healthiest cooking method among the options, promoting a nutritious way of preparing food.