Expert Q&A for How to Estimate Portion Size

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  • Question
    What is the correct portion size of food?
    Claudia Carberry, RD, MS
    Registered Dietitian
    Claudia Carberry is a Registered Dietitian specializing in kidney transplants and counseling patients for weight loss at the University of Arkansas for Medical Sciences. She is a member of the Arkansas Academy of Nutrition and Dietetics. Claudia received her MS in Nutrition from the University of Tennessee Knoxville in 2010.
    Registered Dietitian
    Expert Answer
    Half of a cup is a good rule of thumb, especially for starchy foods. Aim to eat more fruits and veggies than protein and starches.
  • Question
    How big is 4 oz of fish?
    Claudia Carberry, RD, MS
    Registered Dietitian
    Claudia Carberry is a Registered Dietitian specializing in kidney transplants and counseling patients for weight loss at the University of Arkansas for Medical Sciences. She is a member of the Arkansas Academy of Nutrition and Dietetics. Claudia received her MS in Nutrition from the University of Tennessee Knoxville in 2010.
    Registered Dietitian
    Expert Answer
    4 oz of fish will be a little bit larger than the palm of your hand. An average palm is about 3 oz.
  • Question
    How do they determine serving size?
    Claudia Carberry, RD, MS
    Registered Dietitian
    Claudia Carberry is a Registered Dietitian specializing in kidney transplants and counseling patients for weight loss at the University of Arkansas for Medical Sciences. She is a member of the Arkansas Academy of Nutrition and Dietetics. Claudia received her MS in Nutrition from the University of Tennessee Knoxville in 2010.
    Registered Dietitian
    Expert Answer
    Serving sizes are based on how many grams of carbohydrates, fat, or protein is in a food.
  • Question
    How much is a fist-sized portion?
    Claudia Carberry, RD, MS
    Registered Dietitian
    Claudia Carberry is a Registered Dietitian specializing in kidney transplants and counseling patients for weight loss at the University of Arkansas for Medical Sciences. She is a member of the Arkansas Academy of Nutrition and Dietetics. Claudia received her MS in Nutrition from the University of Tennessee Knoxville in 2010.
    Registered Dietitian
    Expert Answer
    For most people, a fist is about 1 cup. If you have a large hand, it may be more.
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