💎 Key Nutrients
What Is Lime Juice? Origin and Varieties
Lime juice is the highly acidic, tart liquid extracted from ripe limes (genus Citrus, primarily Citrus aurantifolia and Citrus latifolia), which are small green citrus fruits prized worldwide for their flavor and nutritional value. Native to Southeast Asia, limes have been cultivated for centuries and spread globally through trade and agriculture. Today, Mexico, India, and several Mediterranean countries produce the bulk of the world’s limes. The juice is a staple in beverages (like limeade and cocktails), savory dishes (ceviche, marinades, dressings), and condiments across Latin American, Asian, and Middle Eastern cuisines. While lime varieties vary—Key limes tend to be smaller and more aromatic, Persian limes larger and milder—the juice across types shares high citric acid levels, bright flavor, and a nutrient profile that includes water, carbohydrates, vitamins, minerals, and phytochemicals. Unlike whole limes, which include peel and pulp with additional fiber and essential oils, raw lime juice is used primarily for taste and nutritional enhancement in food and drinks. Beyond taste, it’s appreciated for its role in hydration, culinary balance (acidity enhances flavors), and nutrient delivery. The distinctive tang of lime juice—largely due to citric acid—also offers functional uses, such as preventing enzymatic browning in cut fruits and imparting bright acidity to dishes. Historical uses include prevention of scurvy in sailors during long sea voyages due to the juice’s rich vitamin C content—an early example of a food playing a critical public health role. Today, consumers enjoy lime juice both as a flavorful ingredient and for its potential health benefits, including immune support, antioxidant capacity, and roles in digestion and nutrient absorption.
Nutrition Profile: A Detailed Breakdown
Raw lime juice is predominantly water (≈90%), making it a hydrating, low‑calorie beverage with unique nutrient contributions. In a standard 1 cup (242g) serving, it delivers roughly 60 kcal, mostly from carbohydrates (~20.4g) with minimal fat (~0.17g) and a small amount of protein (~1.0g). While not a significant source of fats or proteins, lime juice’s strength lies in micronutrients and phytochemicals. Vitamin C stands out at ~72.6 mg per cup, covering a substantial portion of the daily recommended intake. This antioxidant vitamin supports immune defense, collagen synthesis, and cellular health. Potassium (~283 mg) contributes to electrolyte balance and heart health, while minerals like calcium (~34 mg) and iron (~0.22 mg) add trace contributions to bone and blood health. Folate (~24.2 mcg) and vitamin K (~1.5 mcg) are present in modest amounts, supporting cell division and blood clotting pathways, respectively. Compared with whole lime fruit, the juice lacks most dietary fiber, which is concentrated in the pulp and peel. However, it retains essential water‑soluble vitamins and minerals that dissolve readily in the juice. Lime juice also contains flavonoids and other phytochemicals—bioactive compounds recognized for antioxidant and anti‑inflammatory actions. These compounds are not always quantified on standard nutrition labels but are documented in citrus bioactive research for roles in oxidative stress modulation, lipid profile improvement, and potentially neuroprotective effects. Though naturally sweet, its total sugars (~4.1g per cup) are low compared with many fruit juices, and it contains negligible added sugars, making it a favorable choice for flavoring without excess calories. Nutrient density comparison shows lime juice offers more vitamin C and less sugar per calorie than many other fruit juices, positioning it as a relatively nutrient‑dense option for those seeking vitamins without high caloric load.
Evidence-Based Health Benefits
A growing body of research and authoritative health sources highlight several health effects associated with lime juice consumption. Raw lime juice’s vitamin C and flavonoid content provide antioxidant and immune‑supportive actions: vitamin C neutralizes free radicals and supports white blood cell function, a key part of innate immunity. Antioxidant flavonoids and phenolics in citrus juices have been shown in biochemical studies to reduce oxidative stress markers and support inflammation regulation, factors linked to chronic disease risk reduction. Lime juice is high in citric acid, which increases urinary citrate levels—a known protective factor against certain types of kidney stones by binding calcium and reducing stone formation risk. Increased citrate excretion has been associated with lower recurrence of calcium oxalate stones. Evidence also indicates that vitamin C enhances non‑heme iron absorption, a dietary advantage when consuming plant‑based iron sources, improving iron status and energy metabolism. In cardiovascular contexts, potassium and flavonoids may assist in blood pressure regulation and vascular function. Potassium supports sodium balance and blood pressure control, while flavonoids like hesperidin (found in citrus) have been linked to improved lipid profiles and endothelial function, which can contribute to heart health. Some studies suggest that citrus flavonoids may inhibit harmful bacteria like Helicobacter pylori, potentially reducing gastric inflammation risks, though human clinical evidence remains limited. While observational and biochemical studies support these benefits, randomized clinical trials in humans specifically isolating lime juice effects are fewer, and much of the research extrapolates from citrus fruit and juice studies in general. Nonetheless, consistent findings indicate that citrus juice consumption, including lime juice, contributes beneficial nutrients and bioactive compounds that support immune function, cardiovascular health, kidney stone prevention, and nutrient absorption.
Potential Risks and Who Should Be Careful
Although raw lime juice is generally safe for most people, there are specific considerations and potential risks. Its high citric acid content makes it very acidic (pH frequently <3), which can contribute to dental enamel erosion when consumed frequently or in concentrated form. Patients with acid reflux or gastroesophageal reflux disease (GERD) may find that acidic juices worsen symptoms, as citrus acids can relax the lower esophageal sphincter and increase discomfort. Individuals with sensitive stomachs, ulcers, or acid‑induced gastritis should moderate intake and might dilute the juice with water or avoid on an empty stomach. Another risk—though rare—is phytophotodermatitis, a skin reaction caused by contact with citrus juices like lime followed by UV exposure, leading to burns or dermatitis. This reaction is more common when zesting or handling large amounts of lime peel. For people with citrus allergies, lime juice may trigger allergic responses ranging from mild oral itching to more severe symptoms. In addition, commercial unpasteurized juices or fresh squeezed juice sold without proper food safety controls can carry foodborne pathogens. The FDA recommends that untreated fruit juices pose risks to vulnerable populations (children, elderly, immunocompromised) unless properly processed for safety. These groups may need to avoid raw juices unless boiled or pasteurized. While lime juice can boost iron absorption, individuals with conditions such as hemochromatosis (iron overload) should consult clinicians before using high‑vitamin C foods as a strategy, as enhanced iron uptake could exacerbate iron accumulation.
How to Select, Store, and Prepare Lime Juice
Selecting fresh limes begins with choosing fruit that feels heavy for its size, indicating high juice content, with smooth, unwrinkled skin and little blemishing. Roll the lime firmly on the countertop before juicing to break down internal segments and maximize yield. For preparation, use a citrus reamer or press to extract juice efficiently. To preserve nutrients and freshness, consume lime juice shortly after squeezing. If storage is necessary, place it in an airtight glass container and refrigerate at 34–40°F immediately; fresh juice maintains best quality for about 2–3 days in these conditions, though certain sources suggest up to 3–5 days if sealed well. Freezing is a practical method to extend shelf life up to ~3 months in ice cube trays or sealed bags without significant nutrient loss. Avoid storing in metal containers, as acidity can impart off‑flavors and potentially react with the metal. Pasteurized bottled lime juice has a much longer fridge life—up to 6–12 months unopened, and after opening, several months if refrigerated properly. Always label containers with the date and inspect juice visually; signs of spoilage include off odors, discoloration, cloudiness, or foam formation, warranting immediate discard.
Best Ways to Eat Lime Juice
Lime juice’s culinary uses extend far beyond drinks. Its bright acidity enhances seafood (like ceviche), marinades, dressings, sauces, and fermented dishes. Squeezing lime juice over cooked vegetables preserves vitamins and catalyzes flavor without adding calories. In beverages, combine with water or herbal teas for a refreshing, nutrient‑rich drink. In dressings, emulsify lime juice with olive oil, garlic, and herbs to maximize flavor and preserve vitamin C, which can degrade with prolonged exposure to heat. Using lime juice just before serving retains the highest nutrient content. Pairing it with ingredients rich in iron (like spinach or beans) can boost iron absorption due to the vitamin C pathway. Avoid prolonged cooking of lime juice alone, as heat can degrade vitamin C and diminish antioxidant effects.
Nutrient Absorption: What Helps and Hinders
Vitamin C significantly enhances non‑heme iron absorption, particularly when consumed alongside plant‑based iron sources. Pair lime juice with iron‑rich plant foods like lentils, spinach, or fortified cereals to improve uptake. Conversely, consuming lime juice with high‑calcium foods may slightly reduce iron absorption due to mineral interaction competition. Balanced meals that combine lime juice with protein, fiber, and healthy fats optimize overall nutrient absorption and glycemic control.
Lime Juice for Specific Diets
Lime juice fits seamlessly into vegan, vegetarian, paleo, Whole30, and low‑calorie diets due to its minimal calories and plant origin. For keto diets, lime juice can be used sparingly due to its carbohydrates (~20g per cup) but is generally acceptable in small amounts for flavor without spiking carbohydrate intake. Diabetics can include lime juice as a flavorful addition to meals to enhance nutrient absorption and add zest without added sugars, but should monitor total carbohydrate intake. Heart‑healthy diets benefit from its potassium and antioxidant content, supporting blood pressure and vascular function.
❤️ Health Benefits
Supports Immune Function
High **vitamin C** content supports white blood cell function and antioxidant defenses to neutralize free radicals.
Evidence: strongMay Help Prevent Kidney Stones
Citric acid increases urinary citrate, which binds calcium and reduces stone formation risk.
Evidence: moderateEnhances Iron Absorption
Vitamin C improves non‑heme iron absorption from plant foods, boosting anemia prevention.
Evidence: strongProvides Antioxidant Protection
Flavonoids and phenolic compounds scavenge free radicals and support oxidative stress regulation.
Evidence: moderate⚖️ Comparisons
Vs. Lemon juice
Lemon juice has a similar acidity and vitamin C content but tends to be slightly milder and more accessible in some regions.
Vs. Orange juice
Orange juice contains more sugar and calories but more fiber and larger vitamin and mineral amounts per serving.
Vs. Grapefruit juice
Grapefruit juice has similar antioxidant compounds but tends to be more bitter and higher in calories per cup.
🧊 Storage Guide
🏠
Counter
2–4 hours
❄️
Fridge
2–5 days (fresh juice)
🧊
Freezer
3 months
⚠️ Signs of
Spoilage:
- smell: fermented or off odor
- visual: cloudiness, discoloration, mold
- texture: sliminess, thickening
- when to discard: any mold, off smell, significant color change
👥 Special Considerations
elderly
Why: Nutrient support with minimal calories.
Recommendation: Safe in meals
athletes
Why: Potassium and water content aid hydration.
Recommendation: Use for hydration
children
Why: Acidity may irritate young stomachs.
Recommendation: Offer diluted
pregnancy
Why: Good source of vitamin C; avoid excessive acidity if sensitive.
Recommendation: Consume in moderation
breastfeeding
Why: Provides hydration and vitamin C.
Recommendation: Yes, moderate use
🔬 Detailed Nutrition Profile (USDA)
Common Portions
1.00 cup
(242.00g)
1.00 fl oz
(30.80g)
1.00 lime yields
(44.00g)
| Nutrient | Amount | Unit |
|---|---|---|
| Water | 90.7900 | g |
| Energy | 25.0000 | kcal |
| Energy | 104.0000 | kJ |
| Protein | 0.4200 | g |
| Total lipid (fat) | 0.0700 | g |
| Ash | 0.3100 | g |
| Carbohydrate, by difference | 8.4200 | g |
| Fiber, total dietary | 0.4000 | g |
| Total Sugars | 1.6900 | g |
| Sucrose | 0.4800 | g |
| Glucose | 0.6000 | g |
| Fructose | 0.6100 | g |
| Lactose | 0.0000 | g |
| Maltose | 0.0000 | g |
| Galactose | 0.0000 | g |
| Starch | 0.0000 | g |
| Calcium, Ca | 14.0000 | mg |
| Iron, Fe | 0.0900 | mg |
| Magnesium, Mg | 8.0000 | mg |
| Phosphorus, P | 14.0000 | mg |
| Potassium, K | 117.0000 | mg |
| Sodium, Na | 2.0000 | mg |
| Zinc, Zn | 0.0800 | mg |
| Copper, Cu | 0.0270 | mg |
| Manganese, Mn | 0.0180 | mg |
| Selenium, Se | 0.1000 | µg |
| Vitamin C, total ascorbic acid | 30.0000 | mg |
| Thiamin | 0.0250 | mg |
| Riboflavin | 0.0150 | mg |
| Niacin | 0.1420 | mg |
| Pantothenic acid | 0.1230 | mg |
| Vitamin B-6 | 0.0380 | mg |
| Folate, total | 10.0000 | µg |
| Folic acid | 0.0000 | µg |
| Folate, food | 10.0000 | µg |
| Folate, DFE | 10.0000 | µg |
| Choline, total | 5.1000 | mg |
| Betaine | 0.2000 | mg |
| Vitamin B-12 | 0.0000 | µg |
| Vitamin B-12, added | 0.0000 | µg |
| Vitamin A, RAE | 2.0000 | µg |
| Retinol | 0.0000 | µg |
| Carotene, beta | 30.0000 | µg |
| Carotene, alpha | 0.0000 | µg |
| Cryptoxanthin, beta | 0.0000 | µg |
| Vitamin A, IU | 50.0000 | IU |
| Lycopene | 0.0000 | µg |
| Lutein + zeaxanthin | 0.0000 | µg |
| Vitamin E (alpha-tocopherol) | 0.2200 | mg |
| Vitamin E, added | 0.0000 | mg |
| Tocopherol, beta | 0.0000 | mg |
| Tocopherol, gamma | 0.0000 | mg |
| Tocopherol, delta | 0.0000 | mg |
| Tocotrienol, alpha | 0.0500 | mg |
| Tocotrienol, beta | 0.0000 | mg |
| Tocotrienol, gamma | 0.0000 | mg |
| Tocotrienol, delta | 0.0000 | mg |
| Vitamin D (D2 + D3), International Units | 0.0000 | IU |
| Vitamin D (D2 + D3) | 0.0000 | µg |
| Vitamin K (phylloquinone) | 0.6000 | µg |
| Vitamin K (Dihydrophylloquinone) | 0.0000 | µg |
| Fatty acids, total saturated | 0.0080 | g |
| SFA 4:0 | 0.0000 | g |
| SFA 6:0 | 0.0000 | g |
| SFA 8:0 | 0.0000 | g |
| SFA 10:0 | 0.0000 | g |
| SFA 12:0 | 0.0000 | g |
| SFA 14:0 | 0.0000 | g |
| SFA 16:0 | 0.0080 | g |
| SFA 18:0 | 0.0000 | g |
| Fatty acids, total monounsaturated | 0.0080 | g |
| MUFA 16:1 | 0.0020 | g |
| MUFA 18:1 | 0.0070 | g |
| MUFA 20:1 | 0.0000 | g |
| MUFA 22:1 | 0.0000 | g |
| Fatty acids, total polyunsaturated | 0.0230 | g |
| PUFA 18:2 | 0.0150 | g |
| PUFA 18:3 | 0.0080 | g |
| PUFA 18:4 | 0.0000 | g |
| PUFA 20:4 | 0.0000 | g |
| PUFA 20:5 n-3 (EPA) | 0.0000 | g |
| PUFA 22:5 n-3 (DPA) | 0.0000 | g |
| PUFA 22:6 n-3 (DHA) | 0.0000 | g |
| Fatty acids, total trans | 0.0000 | g |
| Cholesterol | 0.0000 | mg |
| Tryptophan | 0.0020 | g |
| Threonine | 0.0020 | g |
| Isoleucine | 0.0020 | g |
| Leucine | 0.0160 | g |
| Lysine | 0.0160 | g |
| Methionine | 0.0020 | g |
| Cystine | 0.0020 | g |
| Phenylalanine | 0.0110 | g |
| Tyrosine | 0.0020 | g |
| Valine | 0.0110 | g |
| Arginine | 0.0150 | g |
| Histidine | 0.0020 | g |
| Alanine | 0.0240 | g |
| Aspartic acid | 0.1140 | g |
| Glutamic acid | 0.0670 | g |
| Glycine | 0.0110 | g |
| Proline | 0.0300 | g |
| Serine | 0.0350 | g |
| Alcohol, ethyl | 0.0000 | g |
| Caffeine | 0.0000 | mg |
| Theobromine | 0.0000 | mg |
Source: USDA FoodData Central (FDC ID: 168156)
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