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Naval Oranges Nutrition

author image Jill Corleone, RDN, LD
Jill Corleone is a registered dietitian and health coach who has been writing and lecturing on diet and health for more than 15 years. Her work has been featured on the Huffington Post, Diabetes Self-Management and in the book "Noninvasive Mechanical Ventilation," edited by John R. Bach, M.D. Corleone holds a Bachelor of Science in nutrition.
Naval Oranges Nutrition
Close-up of a sliced naval orange. Photo Credit: PeachLoveU/iStock/Getty Images

Including more fruits in your diet can lower your risk of heart disease, diabetes and certain cancers, according to the U.S. Department of Agriculture. Most healthy adults need 1 1/2 to 2 cups of fruit a day. Navel oranges make a healthy fruit choice as they are low in calories and high in fiber, potassium and vitamin C.

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Serving Size and Calories

As a food item packed by nature, it can be difficult to determine the exact serving size and calories per serving of a navel orange. According to the USDA Nutrient Database, a 2 7/8-inch diameter navel orange contains 69 calories.

Carbohydrates, Fat and Protein

Each 2 7/8-inch diameter navel orange contains 17.5 g of carbohydrates, 3 g of fiber, 1 g of protein and less than 1 g of total fat. Carbohydrates turn into glucose during digestion and act as a source of fuel for your cells. The USDA recommends 45 to 65 percent of your total calories come from carbohydrates. Fiber is a type of carbohydrate that helps alleviate constipation, control hunger, lower cholesterol and improve blood sugars in diabetes. Healthy women need 21 to 25 g of fiber a day, and healthy men need 30 to 38 g of fiber a day.


A diet that includes rich sources of potassium can improve your heart health. The American Heart Association recommends healthy people consume 4,700 mg of natural potassium a day to help control blood pressure. One navel orange contains 232 mg of potassium. Talk to your doctor about your potassium needs; some illnesses, such as kidney disease, require a potassium-restricted diet.

Vitamin C

One navel orange contains 82 mg of vitamin C. Healthy adult men need 90 mg of vitamin C a day, and healthy adult women need 75 mg of vitamin C a day. Vitamin C is required for the synthesis of collagen, a structural protein found in your skin, tendons and ligaments. It is also an important antioxidant that protects cells from free radical damage, and may help prevent the onset of heart disease and certain types of cancers.

Vitamin A

Adequate intakes of vitamin A helps to promote vision health, normal growth and development and immune health. A navel orange contains both vitamin A and beta carotene. Beta carotene is a form of vitamin A that has antioxidant properties. Beta carotene is responsible for the color of the orange. Healthy adult men need 3,000 IU of vitamin A a day, and healthy adult women need 2,310 IU of vitamin A a day. One navel orange contains 346 IU of vitamin A.

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