food size

[Lisa1171 2]

Hello everyone i'm almost about to get my surgery date.I've had a dietrition for a few months not weve been talking about serving size and i just don't get it.i have a book with all food and size's but i'm not sure how to get serving size's like if u have a 1 serving size of fruit how do u measure it do i get 1/2 fruit and 1/2 of another fruit is that what 1 serving is and what about 2 servings