1 serving (123 grams) contains 52 calories, 1.0 grams of protein, 0.2 grams of fat, and 13.0 grams of carbohydrates.
Calories |
100.0 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 0.4 g | 0% | |
| Saturated Fat | 0 g | 0% | |
| Polyunsaturated Fat | 0 g | ||
| Cholesterol | 0 mg | 0% | |
| Sodium | 0 mg | 0% | |
| Total Carbohydrates | 25 g | 9% | |
| Dietary Fiber | 3.8 g | 13% | |
| Sugars | 16.3 g | ||
| protein | 1.9 g | 3% | |
| Vitamin D | 0 mcg | 0% | |
| Calcium | 42.3 mg | 3% | |
| Iron | 0.2 mg | 1% | |
| Potassium | 319.2 mg | 6% | |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Ruby grapefruit, a variety of the common grapefruit, is a tropical citrus fruit primarily cultivated in countries with warm climates such as the United States (Florida and Texas), Mexico, and parts of Southeast Asia. Originally developed in the 1920s, ruby grapefruit has a sweeter flavor and vibrant red flesh compared to white or pink varieties, making it popular in salads, juices, and desserts. Nutritionally, ruby grapefruit is low in calories (approximately 52 calories per 100g), rich in vitamin C (over 40% of the recommended daily intake per 100g), and provides antioxidants like lycopene. It is also a good source of dietary fiber, potassium, and small amounts of vitamins A and B-complex. This fruit is often incorporated into Mediterranean-style or health-conscious cuisines and diets like clean eating programs due to its nutrient-dense profile.
Store whole ruby grapefruits at room temperature for up to a week or refrigerate them for up to 3 weeks. Once cut, wrap the segments tightly or store them in a sealed container in the fridge and consume within 2-3 days.
Ruby grapefruit is low in protein, containing only about 1 gram of protein per medium-sized fruit (about 123 grams). It is not a significant source of protein and is better known for its high vitamin C and fiber content.
Ruby grapefruit is not typically recommended on a strict keto diet due to its relatively high carbohydrate content. A medium-sized ruby grapefruit contains about 11 grams of net carbs, which can quickly consume a large portion of your daily carb allowance on keto.
Ruby grapefruit is rich in vitamin C, providing over 50% of the recommended daily intake per medium fruit, which supports immune health. It also contains antioxidants like lycopene and flavonoids, which may help reduce inflammation and support heart health. Additionally, its fiber content aids in digestion and helps maintain a feeling of fullness.
A serving size for ruby grapefruit is typically half of a medium grapefruit, which is about 60 calories and provides 38 milligrams of vitamin C. Eating half a grapefruit is an excellent addition to a well-balanced diet. However, individuals taking certain medications (like statins) should consult their doctor first, as grapefruit can interact with these drugs.
Ruby grapefruit and oranges are both excellent sources of vitamin C, but ruby grapefruit is slightly lower in calories and carbs. A medium orange has about 62 calories and 15 grams of net carbs, while a medium ruby grapefruit has about 52 calories and 11 grams of net carbs. Grapefruit also contains more antioxidants, like lycopene, compared to most orange varieties.
Our nutrition data comes from trusted, authoritative sources to ensure accuracy and reliability. Below are specific scientific references and authoritative sources for this food item.
Additional Authoritative Sources:
Daily value percentages based on FDA guidelines. Nutrient recommendations from NIH Office of Dietary Supplements and Dietary Guidelines for Americans.
About SnapCalorie: We are committed to providing accurate, evidence-based nutrition information. Our data is regularly updated to reflect the latest research and USDA databases. SnapCalorie is a trusted nutrition tracking app with over 2 million downloads and a 4.8/5 star rating.