Calories in Limequat: Nutritional facts for Limequat Types

One hundred grams (3.5 oz) of raw whole limequats contains 30 calories.

One kilogram (1,000 g or 35.3 oz) of raw whole limequats contains 300 calories.

A single medium limequat weighing 67 g (2.3 oz) contains 20 calories. A larger fruit weighing 85 g (3 oz) provides 25 calories. A small variety weighing 40 g (1.4 oz) offers 12 calories.

Limequats offer specific physiological advantages, primarily centered on fortifying the immune system and protecting cellular integrity due to their dense concentration of ascorbic acid and peel-based bioflavonoids. This tart-sweet hybrid, sometimes referred to as the "sweet-skin lime" or simply "kumquat-lime cross," provides a unique nutritional mechanism since the entire fruit is ingested. A list of the health benefits of limequats is shown below.

• Bolsters Immune System Function: Providing 45 mg of Vitamin C per 100 g (50% DV), the fruit aggressively supports the production and efficacy of white blood cells. Research by Carr and Maggini (2017), "Vitamin C and Immune Function," emphasizes that adequate ascorbic acid intake is crucial for maintaining the epithelial barrier against pathogens.
• Combats Cellular Oxidation: The edible rind is rich in flavonoids like hesperidin and naringin. A study by Peterson et al. (2006), "Composition of flavonoids in citrus fruit," highlights that these peel-derived compounds act as potent scavengers of free radicals, reducing oxidative stress.
• Promotes Digestive Regularity: Consuming the whole fruit delivers 2.2 g of dietary fiber, which adds bulk to stool and facilitates smooth gastrointestinal transit.
• Enhances Iron Absorption: The high Vitamin C content in the juice significantly improves the bioavailability of non-heme iron when consumed alongside plant-based iron sources.
• Supports Collagen Synthesis: Ascorbic acid is a required cofactor for the structural formation of collagen, ensuring skin elasticity and joint health.
• Aids in Weight Management: With only 20 calories per medium fruit and zero fat, it serves as a highly flavorful, low-energy dietary addition.
• Reduces Sodium Dependency: The intense acidity and aromatic zest provide a robust flavor profile that can replace salt in marinades and dressings, supporting cardiovascular health.

Despite its nutritional efficiency, the limequat can present certain physical and digestive challenges due to its extreme acidity and the presence of small seeds. A list of the downsides of limequats is shown below.

• Causes Dental Enamel Erosion: The highly acidic juice (low pH) can demineralize and soften tooth enamel if consumed frequently without rinsing the mouth afterward.
• Triggers Acid Reflux: The intense citric acid concentration can irritate the esophageal lining, exacerbating symptoms for individuals with Gastroesophageal Reflux Disease (GERD).
• Poses a Choking Hazard: The fruit contains numerous small, hard seeds that must be chewed carefully or removed, presenting a specific risk for young children.
• Gastric Irritation: Eating large quantities of the acidic pulp on an empty stomach may lead to gastritis or general abdominal discomfort.
• Limited Commercial Availability: The fruit has a short, localized growing season, making it difficult to source and often expensive outside of specialty markets.

Yes, limequats are an excellent dietary choice because they deliver 50% of the DV for Vitamin C and a rich array of peel-bound flavonoids in a compact 100 g (3.5 oz) serving. Healthy individuals should consume 2 to 3 medium fruits (approx. 134 g to 200 g) daily to maximize immune support and antioxidant intake. The primary advantage of the limequat over a standard lime is the edibility of the sweet rind, which allows for the total consumption of the fruit's fiber and essential oils. Research by Peterson et al. (2006) confirms that the highest concentration of beneficial citrus flavonoids resides in the peel, making this hybrid uniquely advantageous for health.

The caloric density among fresh limequat cultivars is practically uniform, hovering between 30 and 32 calories per 100 g (3.5 oz). Variations arise strictly from minor differences in the thickness and sugar concentration of the edible rind; the Lakeland variety, bred for a sweeter peel, contains fractionally more natural carbohydrates than the sharper Eustis. The most significant shift in energy density occurs through culinary processing; candied limequats or limequat marmalades will surge past 250 calories per 100 g due to the heavy saturation of refined cane sugar required for preservation.

The origin of the limequat is the United States, specifically the agricultural laboratories of the USDA in Florida. In 1909, botanist Walter T. Swingle deliberately cross-pollinated the key lime (Citrus × aurantiifolia) with the kumquat (Citrus japonica) in an effort to create a citrus fruit that possessed the tart flavor of a lime but inherited the cold-hardiness of the kumquat.

The resulting hybrid successfully survived the devastating Florida freezes that frequently destroyed pure lime crops. By 1913, Swingle had finalized the three main cultivars: Eustis, Lakeland, and Tavares. While the fruit proved resilient, it never overtook the commercial dominance of the Persian lime due to its small size and multitude of seeds. Today, the limequat remains a niche, specialty crop cultivated in small groves across Florida, California, and parts of South Africa, prized by culinary professionals for its unique edible rind.