It's a myth. Coconut water DOES NOT make your baby comes out cleaner or less bloody. I'm a mum of 4 and have been drinking coconut water during the last stage of pregnancy and nope my babies still comes out with vernix which is good cos it protects them and their skin even hrs after birth. Not sure why the hoo-haa over 'clean' baby. The fresh green coconut is better but nowadays in supermarket also got sell 100% coconut water. Not the thai coconut ok.