Coconut water is the juice in the 
interior or endosperm of young coconut. The water is one of the nature’s
 most refreshing drinks consumed worldwide for its nutritious and health
 benefiting properties.
Its juicy water is usually obtained by 
opening a tender, green, healthy, and undamaged coconut. The liquid is 
clear, sweet, and sterile and composed of unique chemicals such as 
sugars, vitamins, minerals, electrolytes, enzymes, amino acids, 
cytokine, and phyto-hormones.
Botanically, coconut plant belongs to the
 Arecaceae family of palm trees and has scientific name: Cocos nucifera.
   Each nut may contain about 200 to 1000 ml of water depending on 
cultivar type and size.
Any nuts younger than 5 months age tend 
to be bitter in taste and devoid of nutrients. Whereas, older nuts have 
less water and their endosperm becomes thicker as white edible meat 
(kernel).
Coconut water is a very refreshing drink 
to beat tropical summer thirst. The juice is packed with simple sugar, 
electrolytes, and minerals to replenish hydration levels in the body.
Research studies suggest that cytokinins 
(e.g., kinetin and trans-zeatin) in coconut water showed significant 
anti-ageing, anti-carcinogenic, and anti-thrombotic effects.
Coconut water has been generally offered 
to patients with diarrhea in many tropic regions to replace fluid loss 
from the gastrointestinal tract and reduce the need for intravenous 
therapy.
The osmolarity of tender coconut water is
 slightly greater than that of WHO recommended ORS (Oral Rehydration 
Therapy) osmolarity.
Coconut water is composed of many 
naturally occurring bioactive enzymes such as acid phosphatase, 
catalase, dehydrogenase, diastase, peroxidase, RNA polymerases etc. 
Altogether, these enzymes aid in digestion and metabolism.
Despite very light consistency, its water
 has much better composition of minerals like calcium, iron, manganese, 
magnesium, and zinc than some of fruits like oranges.
Its water is also a very good source of 
B-complex vitamins such as riboflavin, niacin, thiamin, pyridoxine, and 
folates. These vitamins are essential in the sense that body requires 
them from external sources to replenish.
Coconut water contains a very good amount
 of electrolyte potassium. 100 ml of water has 250 mg of potassium and 
105 mg of sodium.
Together, these electrolytes help 
replenish electrolytes deficiency in the body due to diarrhea (loose 
stools).   In addition, fresh coconut water has small amount of 
vitamin-C (ascorbic acid); provides about 2.4 mcg or 4% of RDA. Vitamin C
 is a water-soluble ant-oxidant.