Bento boxes are a popular item to use to prepare lunches and snacks in Japan. The compartmentalized containers have made their way west as an ideal way to ensure meals are well-balanced and served in proper portions – characteristics that are crucial for a healthy diet. To use bento boxes for portion control, purchase containers with the correct number of compartments for your needs and fill those compartments with healthy whole foods from all four food groups.[1] Part 1 - Determining Proper Portion Sizes 1 → Learn visual representations. If you can compare ideal portion sizes to other objects with which you're familiar, you'll get the portions right every time without having to meticulously weigh and measure the food you eat. → One serving of protein is 3 to 4 ounces (around 88 to 118 ml): the size of a fist, the palm of your hand, or a deck of cards. → The recommended serving size for carbohydrates, such as pasta or rice, is one cup or 8 ounces (about 237 ml): the...