Subject: Can death result from drinking a glass of heavy water?

For example, if the hydrogens are replaced by heavy hydrogen - the isotope 
called hydrogen-2 or deuterium - the resulting heavy water behaves in some 
respects like a different molecule altogether.
Is the above statement true?
I always think that all isotop of hydrogen is has the same properties 
except thw mass until I read this passage(link is below).
Please refer to the last paragraph at 
http://helix.nature.com/nsu/981217/981217-1.html
for the actual passage.

Re: Can death result from drinking a glass of heavy water?