In "Saved by the Great White Hope," Ben and Lily use the milk from green coconuts as a substitute for blood to do a coconut transfusion, since the milk has the same electrolyte balance as blood.
When Ed starts to bleed out it becomes clear that the clinic does not have enough blood to perform a transfusion. Ben and Lily use the milk from green coconuts as a substitute for blood. The milk has the same electrolyte balance as blood. 
