imes are sour, round, and bright green citrus fruits.

They’re nutritional powerhouses — high in vitamin C, antioxidants, and other nutrients.

There are many species of limes, including the Key lime (Citrus aurantifolia), Persian lime (Citrus latifolia), desert lime (Citrus glauca), and makrut lime (Citrus hystrix).

Each of these species has unique characteristics. For instance, the Key lime is smaller, more acidic, and more aromatic than the more common Persian type.

In the United States, Persian limes are the most commonly available type.

Because limes are loaded with nutrients, they may help boost immunity, reduce heart disease risk factors, prevent kidney stones, aid iron absorption, and promote healthy skin.