Lime
Lime is a small green citrus fruit rich in vitamin C and citric acid, commonly used as a flavoring and condiment. It contributes minimal calories and notable micronutrients to the diet.
Also known as: Persian lime, Key lime, Mexican lime, Citrus aurantifolia, Citrus latifolia, Lime juice, Lime zest
Scientific & Editorial Standard: This information is synthesized from peer-reviewed databases (such as PubMed, NIH, NHS, and Mayo Clinic) and validated using multi-model cross-referencing by the Plateify Editorial Team. It is intended for educational purposes and is not medical advice. If you suspect food sensitivities, consult a healthcare provider.
Lime is the small, round citrus fruit of Citrus aurantifolia (Key lime / Mexican lime) and related species such as Citrus latifolia (Persian lime), native to Southeast Asia and now cultivated widely in tropical and subtropical regions. The fruit is harvested green before full ripeness and used fresh, juiced, or as zest in cooking, beverages, marinades, and condiments. Lime juice is a staple acidulating agent in many cuisines and a common ingredient in soft drinks, cocktails, and prepared foods.
One medium lime (about 67 g, per USDA FoodData Central) contains approximately 20 calories, 7 g carbohydrate, 1.9 g fiber, and negligible protein and fat. Lime is a good source of vitamin C (about 19 mg, roughly 21% of the daily value per medium fruit) and contains small amounts of potassium, folate, and polyphenols including flavonoids and limonoids. Lime juice has a high citric acid content (typically 4–6% by weight of the juice), which lowers pH and may modestly improve mineral absorption in the small intestine, though lime does not substantially alter stomach acid production or digestive enzyme activity.
Oral and Dental Considerations
Lime juice is acidic (pH approximately 2) and with frequent or prolonged contact can erode tooth enamel and soften dentin, particularly in people who suck on limes or consume large quantities of lime juice without dilution. Rinsing the mouth with water after consuming acidic foods or beverages and waiting 30 minutes before brushing teeth reduces erosion risk. Lime used in normal culinary amounts—squeezed over food or diluted in drinks—poses minimal dental concern.
Tolerance and Special Populations
Lime is generally well tolerated and has no established upper intake limit. According to Monash University FODMAP research, lime juice is considered low FODMAP at servings of up to 2 tablespoons (40g). Separately, one medium lime (67g) is also considered low FODMAP. Individuals with gastroesophageal reflux disease (GERD) may experience symptom exacerbation from acidic foods; those sensitive to citrus should avoid concentrated juice. Lime is not a common allergen, though rare oral allergy syndrome can occur in people with grass or other pollen allergies. Contact dermatitis from lime peel oils (furocoumarins) is possible but uncommon. Standard culinary use carries no known toxicity and is generally safe across age groups.
Frequently Asked Questions
Does lime juice help with digestion?
Lime juice does not significantly enhance digestive enzyme production or stomach acid secretion. Its citric acid may modestly improve mineral bioavailability in the small intestine, but this effect is modest in practical amounts. Lime is useful primarily as a flavoring that adds minimal calories to meals.
Can lime damage teeth?
Lime juice is acidic (pH approximately 2) and can erode tooth enamel with frequent or prolonged contact, especially if sucked directly on teeth or consumed undiluted. Rinsing with water after acidic foods and waiting 30 minutes before brushing reduces risk. Normal culinary use—juice squeezed over dishes or diluted in beverages—poses minimal concern.
Is lime high in sugar?
No. One medium lime (about 67 g) contains only a small amount of natural sugar and around 7 g total carbohydrate, with nearly 2 g of fiber. Lime is very low glycemic and suitable for carbohydrate-controlled diets.
Is lime a common allergen?
Lime is not a common allergen. Allergic reactions are rare, though oral allergy syndrome can occasionally occur in individuals with grass or other pollen allergies. Contact dermatitis from lime peel oils (furocoumarins) is possible but uncommon.
Sources
- Vitamin C — Consumer Fact Sheet — NIH Office of Dietary Supplements
- Lime, raw — Nutritional Data — USDA FoodData Central
- Low FODMAP Diet — Monash University FODMAP
Educational content: This page is for general informational purposes only. Individual responses to foods vary widely. If you suspect a food allergy or sensitivity, consult a licensed dietitian, allergist, or physician before making dietary changes. Full disclaimer
Some content on this site is AI-assisted. While we strive for accuracy, information may not reflect the latest research. Always verify health information with a professional.
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