Food Portion Sizes: What You Need To Know For Weight Loss Success

Losing weight is NOT easy! You may be looking to lose a few pounds and don’t know where to start. Or, perhaps you are in the process of making lifestyle changes and want to know how to take your progress to the next level. Regardless of your situation, I highly recommend portion control! Eating the proper serving size is a great first step for moderate weight loss and to achieve a balanced diet.

Related: “Hidden Sugar In Your Foods: Here’s What You Need To Know”

The good news is, you do not have to carry around measuring cups or weigh your foods to know the correct serving size. Instead, you can use your hands or common objects to estimate your portions! 

Serving size vs portion size

A common question I hear is, what is the difference between a portion size and a serving size? Both are commonly used in nutrition so it’s important to know the difference!

Serving size

A serving size is a common unit of food measurement used to express how much of a food is recommended. The servings you need to consume varies based on age, gender, activity level, or specific medical conditions.

Portion size

A portion is how much you serve yourself, which may be more or less than the recommended serving size. A food item may contain multiple servings, so it is important to read the food label. You also may choose to consume multiple servings in one portion.

Make your portions match your recommended servings in order to eat the proper balance of nutrients each day!

Related: “Phytochemicals: Uncover the Super Food Craze & Boost Your Health”

Here is how to achieve weight loss success by measuring food portion sizes using your hands or common objects


For fruits, most men and women need to consume 2 servings per day. A serving is considered:

  • One cup of fresh fruit
  • One medium whole fruit
  • ½ cup dried fruit

For example, 1 cup is about the size of your fist and a ½ cup is what would fit in the palm of your hand. Also, one medium piece of whole fruit, like an apple or an orange, is the size of a baseball.

1 cup of fruit is about the size of your fist. A ½ cup of fruit is what would fit in the palm of your hand.

One medium piece of whole fruit, like an apple or an orange, is the size of a baseball.  

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Amanda Haney (Legro), MS, RD, CNSC
Hi, my name is Amanda Haney (Legro). I am a registered dietitian and board-certified nutrition support clinician. I was born and raised in Bakersfield, CA. I later moved to Southern California to attend Cal State Long Beach where I obtained my undergraduate degree in nutrition and dietetics as well as my master's degree in nutrition science. I completed my dietetic internship at Cal State Long Beach as well. And I love my alma mater so much that I have since returned to teach undergraduate courses in nutrition. I practice medical nutrition therapy in the pediatric intensive care unit at Miller Children's and Women's Hospital Long Beach. As a clinical dietitian, I'm committed to providing my patients with high-quality nutrition care, to improve their well-being on their road to recovery. I became a dietitian because I love food and I love medicine. There is so much misinformation about nutrition in the media. My passion is to make nutrition simple and to make your health goals achievable. In my free time, I love soaking up the beauty at the beach, riding my bike, staying active, cooking, and, most of all, spending time with my family and friends!