The average dose for humans or Taurine is 1000mg (gram) daily or twice a day.z(this is a therapeutic dose) For cats, it is much less, of course.

So 60gm would be 60 doses for a human.

There is one patient on PN who uses glutamine for her husband.
Most glutamine (about 1/2 is kept in the GI lining), and the rest goes into the body.
This article recommends a very high dose of glutamine:
http://www.thedietchannel.com/Glutam...Neuropathy.htm
But this article is for chemotherapy induced PN.

L-taurine and Taurine I believe is used interchangeably. I don't think they sell mixed RL Taurine. The R (also called D) form is not bioactive.
So check the label of what you buy.

I have not seen any problems with carnitine and taurine. They are pretty benign. Very high amounts of glutamine could conceivable lead to elevated glutamate formation, as glutamate is an end product of the complex chemistry for glutamine. Very high glutaMATE can stimulate pain receptors. But since glutamine is a substrate for many reactions, it might not be a problem for most people.
http://en.wikipedia.org/wiki/Glutamine

Here is one trivia factoid... human breast milk is 10 times higher in glutamine than cow's milk. Seems human infants require this to develop a healthy digestive system.