Coconut water is claimed to cleanse the amniotic fluid so that baby will come out “cleaner” and less bloody. Any natural/fresh (w/o added sugar or any other content) coconut water will do. Best to check with ur gynae if your GD condition allows
my mom bought the real coconut for me & opened it up... not sure about GD tho
if you have GD best is to avoid coconut water as the sugar content is high