Health Benefit of Lime in the Body
Good source of antioxidants
Antioxidants are important compounds that defend your cells against molecules called free radicals. In high amounts, free radicals can damage your cells, and this damage has been linked to chronic conditions like heart disease, diabetes, and many types of cancer (2Trusted Source).
Limes are high in active compounds that function as antioxidants in your body, including flavonoids, limonoids, kaempferol, quercetin, and ascorbic acid (3Trusted Source, 4Trusted Source).
May boost immunity
Limes are high in vitamin C, a nutrient that may help boost your immune system.
In test-tube studies, vitamin C helped increase the production of white blood cells, which help protect your body against infections and disease (5Trusted Source).
In human studies, taking vitamin C helped shorten the duration and severity of colds (6Trusted Source).
Also, vitamin C could help wounds recover faster by reducing inflammation and stimulating collagen production. Collagen is an essential protein that aids wound repair (7Trusted Source, 8Trusted Source).
Besides vitamin C, limes are a great source of antioxidants, which help strengthen your immune system by defending your cells against free radical damage (2Trusted Source).
Could promote healthy skin
Limes have several properties that may promote healthy skin.
First, they’re high in vitamin C. This vitamin is necessary to make collagen, a protein that keeps your skin firm and strong. A medium-sized lime (67 grams) provides over 20% of the DV for this nutrient (1Trusted Source, 9Trusted Source).
For instance, one older study in over 4,000 women found that those who ate more vitamin C had a lower risk of wrinkles and dry skin as they aged (10Trusted Source).
Second, limes are high in antioxidants, which may help combat age-related skin changes.
Oxidative stress is a condition resulting from an imbalance between free radicals and antioxidants in your body. It can lead to signs of premature aging.
A mouse study found that drinking a citrus drink positively affected some of these signs by reducing wrinkles and increasing collagen production, for example (11Trusted Source).
May reduce heart disease risk
Heart disease is the leading cause of death worldwide (12Trusted Source).
Research shows that limes may reduce several heart disease risk factors.
For starters, limes are high in vitamin C, which may help lower high blood pressure, according to one older study (13Trusted Source).
High blood pressure is a major risk factor for heart disease.
Also, vitamin C may protect against atherosclerosis — a disease in which plaque builds up in your arteries, making them narrow (14Trusted Source).
An animal study found that feeding rabbits lime peels and juice helped slow the progression of atherosclerosis (15Trusted Source).
May prevent kidney stones
Kidney stones are small mineral crystals that are often painful to pass.
They can form inside your kidneys when your urine is very concentrated or you have high levels of stone-forming minerals, such as calcium, in your urine (16Trusted Source).
Citrus fruits like limes are high in citric acid, which may prevent kidney stones by raising levels of citrate and binding stone-forming minerals in the urine (17Trusted Source).
One study found that people who ate more citrus fruits had a significantly lower risk of kidney stones (18Trusted Source).
Increases iron absorption
Iron is an essential nutrient needed to make red blood cells and transport oxygen around your body.
Low blood iron levels can cause iron-deficiency anemia. Signs of iron deficiency anemia include fatigue, trouble breathing during exercise, paleness, and dry skin and hair (19Trusted Source).
People on a vegan or vegetarian diet are at a greater risk of iron deficiency anemia, as plant-based products contain a form of iron that isn’t as well absorbed as the iron in meat and other animal products (20Trusted Source).
Foods high in vitamin C, such as limes, may help prevent iron deficiency anemia by improving the absorption of iron from plant-based foods.
For instance, one study in people following a vegetarian diet found that drinking a glass of lemonade (8.5 ounces or 250 mL) alongside a plant-based meal increased iron absorption by up to 70% (21Trusted Source).