What are Curry Leaves
Curry leaves, or kadi patta, are the leaves of the curry tree, scientifically known as Murraya koenigii Spreng. It belongs to the Rutaceae family. The plant is native to India and is usually found in tropical and subtropical regions. It is cultivated in various other countries including China, Australia, Nigeria, and Ceylon.
Curry Leaves Nutrition Facts
The main nutrients found in curry leaves are carbohydrate, fiber, calcium, phosphorous, iron, magnesium, copper, and other minerals. They also contain various vitamins such as B3 (nicotinic acid) vitamin C, vitamin A, vitamin B, vitamin E, antioxidants, plant sterols, amino acids, glycosides, and flavonoids.
Benefits of Curry Leaves
Most people think that curry leaves are only added for flavor and throw the leaves away while eating their soup or curry. However, they are far more important than many realize, and offer a number of health benefits without any side effects.
Curry leaves may help with weight loss, thanks to the presence of the carbazole alkaloids mentioned above, which may prevent weight gain and lower LDL cholesterol. You can add dried or fresh curry leaves to your food or you can directly munch on the dried curry leaves.
Research shows that the carbazole alkaloids present in curry leaves have antidiarrheal properties. Experiments on lab rats showed that carbazole extracts from curry leaves significantly controlled castor oil-induced diarrhea. Consume them by grinding up one bunch of curry leaves, and eat the paste or the juice of the leaves.
The chemical constituents found in curry leaves such as phenols are helpful in fighting cancers such as leukemia, prostate cancer, and colorectal cancers. One research study showed evidence of colon cancer-fighting properties in the carbazole alkaloids extracts from curry leaves. 
Curry leaves are believed to help in strengthening hair roots. Dry curry leaf powder mixed with oil can be applied to your hair. The paste from curry leaves can also be applied in cases of gray hair to slow the graying process. Doing these on a regular basis can improve hair growth as well.