The suggestion I might go with is to ask to talk to the General Council.   But here's what I'd tell her about doing this.

First, e-mail or hand-deliver a written request to have a meeting with the general counsel.  In the e-mail or letter are the following:

* a clear description of the hazards, the potential for serious harm, and the lack of training or understanding of those hazards by the students.  (Here's where Jim can help).  Not too long, no UCLA mentioned, just this issues and facts.

*  next a description of the encounter with the senior faculty member, safety, etc,  and exactly what was said to the best of recollection including as much possible about the times and dates.  

*  just before signing off, say that you and some of your friends are concerned about safety and the good name of the school (don't name anyone), implying that you are not the only one.

This e-mail should establish that there are already background facts for a case if there is an incident later. That puts the lawyers' tushies on the line, too.  If you don't get a meeting, the lawyers should be fired.

Next:  The meeting.

*  Bring a notebook and take notes during the discussion. 

*  Bring a packet of information about UCLA, the sodium issues, anything Jim or someone on this forum forwards that is useful.  Keep copies, of course, of everything you give them.

* Now you can bring up your concerns about retaliation for having tried to do the right thing here.  Keep in mind, these people are paid to protect the school, not you.  So while you are trying to recruit them to be allies in an effort to protect students, do not think you are obtaining a personal ally. They belong heart and soul to the enemy  You are bringing up this issue to firmly establish that you will make an issue of this if  necessary.