Citrus aurantiifolia
Limes tend to stand in the shadow of lemons, yet they are just as useful: sharp, fragrant and full of vitamin C. They are much more than a garnish for cocktails – a squeeze of lime improves the flavor of countless dishes and has some well-documented health benefits.
What makes lime special?
Limes provide vitamin C, flavonoids with antioxidant properties and plenty of citric acid. Their juice helps the body absorb iron from plant foods, and the citrate it contains has a recognized role in preventing certain kidney stones.
Health benefits of lime
1. Supports the immune system
Lime juice contributes vitamin C, which is needed for normal immune function. Regular vitamin C intake may slightly shorten the duration of colds, although it does not prevent them.
2. Aids digestion
The sourness of lime stimulates saliva and digestive juices, which is one reason lime is so common in rich or spicy cuisines. Some people find a little lime juice in water before meals helps with digestion.
3. Improves iron absorption
If you eat a plant-based diet, take note: adding lime juice to lentils, chickpeas or spinach increases the amount of non-heme iron your body can absorb.
4. Supports kidney health
Citrate from limes and lemons raises citrate levels in urine and can help prevent calcium-based kidney stones. Combined with drinking enough water, it is a simple preventive measure.
Nutritional value of lime (per 100 g)
| Nutrient | Amount |
|---|---|
| Calories | 30 kcal |
| Protein | 0.7 g |
| Fat | 0.2 g |
| Carbohydrates | 11 g |
| Sugar | 1.7 g |
| Fiber | 2.8 g |
| Vitamin C | 29.1 mg |
| Calcium | 33 mg |
| Potassium | 102 mg |
| Magnesium | 6 mg |
Lime myths, checked
“Lime alkalizes the body.”
Food cannot change the pH of your blood, which the body keeps within a narrow range. What is true is that citrate from limes makes urine less acidic, which is exactly why it helps against kidney stones.
“Lime is only for drinks.”
It brightens soups, sauces, curries, salads and grilled vegetables, and it stops avocado and apples from turning brown.
Worth knowing
- Against scurvy. British sailors were given lime juice in the 18th and 19th centuries to prevent scurvy, which earned them the nickname “limeys”.
- Look after your teeth. Frequent lime water can erode tooth enamel. Drink it with a straw or rinse your mouth with plain water afterwards.
- Watch out in the sun. Lime juice on the skin can cause a burn-like reaction in sunlight (phytophotodermatitis).
How to use lime
- Warm water with lime in the morning – a refreshing start to the day.
- On salads, avocado toast or grilled vegetables – for brightness and better iron absorption.
- In a coconut-lime dressing – with tahini, garlic and a little honey.
- Zest it. The peel contains aromatic oils and extra flavonoids – use organic, unwaxed limes.
Summary
Limes add vitamin C, citrate and flavor to everyday meals. Their best-documented benefits are better iron absorption and protection against kidney stones – reasons enough to keep a few in your fruit bowl.
