Health Benefits of Oranges, Plus Nutrition Facts

Oranges are more than a sweet, juicy snack—they are hydrating, nutrient-rich, and may help prevent disease. Packed with vitamin C, they support the immune system and overall health.

1. Keeps You Hydrated

A single navel orange contains about 4 ounces of water. Since women need roughly 92 ounces of fluids per day and men about 124 ounces, eating oranges can help meet your daily hydration needs.

Oranges and other water-rich foods contribute about 20% of your daily fluid intake. Staying hydrated helps:

Flush toxins from your body

Lubricate joints

Prevent dehydration and constipation

Maintain healthy body temperature

Support digestion

2. Supports Digestion

One medium navel orange has 2.8 grams of fiber. Fiber improves digestion and offers other health benefits:

Helps regulate blood sugar and insulin

Promotes regular bowel movements

Keeps you feeling full longer

To avoid bloating or gas, increase fiber gradually and drink plenty of water.

3. May Reduce Belly Fat

The fiber in oranges can aid in reducing abdominal fat. Excess belly fat raises inflammation and increases the risk of conditions like type 2 diabetes, high blood pressure, and certain cancers. Oranges also contain flavonoids, compounds that may reduce fat and lower disease risk.

4. Boosts the Immune System

A medium navel orange provides nearly 100% of your daily vitamin C. This nutrient supports immunity and helps the body produce collagen, essential for healthy skin and tissues. Citrus juice also has anti-inflammatory properties, which may protect against disease.

5. Enhances Iron Absorption

Vitamin C in oranges improves iron absorption, which helps your body use oxygen efficiently. Iron deficiency can cause fatigue.

Getting enough iron is especially important for menstruating individuals and those following plant-based diets, as the body absorbs iron from plant foods less efficiently than from animal sources.

6. Protects Against Illness

Oranges contain flavonoids, which act as antioxidants, anti-inflammatories, and antimicrobial agents. These compounds protect cells from oxidative stress, reducing the risk of diabetes, heart disease, and some cancers. High flavonoid intake may also lower depression risk in older adults.

Drinking orange juice regularly may also help reduce cholesterol, supporting heart health and reducing the risk of diabetes.

7. May Lower Cancer Risk

Orange peels are rich in flavonoids and vitamin C. Flavonoids help regulate apoptosis, the process by which the body destroys abnormal cells before they grow uncontrollably, potentially preventing cancer.

8. Could Improve Brain Function

Moderate citrus juice consumption may support cognitive health in older adults by improving blood flow to the brain, helping with focus and mental clarity.

Nutritional Profile of Oranges

A medium navel orange contains:

Calories: 73

Fat: 0.2 g

Sodium: 12.6 mg

Carbs: 16.5 g

Fiber: 2.8 g

Sugars: 0 g

Protein: 1.3 g

Oranges also provide potassium, which supports heart, bone, and muscle health, and folate, essential for DNA and red blood cell production. The seeds are also edible and contain healthy fats, minerals, protein, and carbohydrates.