In response to my (semi-rhetorical, I guess) rant:

Why is it so many nurses are so large? Seems we should know better.

JustSilly theorized:

My mother (who now is at least 100 pounds overweight) was a nurse for
3 decades. To twit, a guess about overweight nurses: the combination
of chronic stress, aforementioned goodies, irregular schedules, and
over exposure to the medical profession's nutritional advice.
(Remember, fat is "bad", sugar is only "neutral" - ugggg)

--

And I've been thinking on this, the last few nights at work.   While
I definitely agree with the stress, goodies, and wacky schedules being
factors, and that we're over-exposed to the low-fat propaganda, most
of the nurses I see aren't really trying to actually FOLLOW said low-
fat theology.  Of the overweight nurses I've worked with (probably at
least 80% of my co-workers, past and present), I can't think of any
who haven't lamented their weight at the same time they're coming to
work with greasy donuts, huge deli sandwiches for lunch, potato chips
and other high-carb and high-fat snacks...All the while they're telling
me "You need carbs, and all that fat is no good for you", they're
eating as much fat as I am - plus all the carbs.  Um, hello, is anybody
awake at the nurses' station? :-) (JustSilly - sounds like your mom
is one of the rare exceptions....)

Actually, that's probably true of a lot of people not in the medical
field, as well.  But it seems to me that, when you see the negative
health effects of obesity on a daily basis, like diabetes, 
hypertension, heart attacks, strokes, joint problems, etc., (not to say
that all obese people will have these problems, or that being thin is
a guarantee one won't have them)...Well, it just seems to me that we'd
have even more motivation to at least try.  And, for the ones who
have honestly tried the low-fat thing and found it didn't work - hey,
sometimes you've gotta adjust the patient's meds to get the therapeutic
effect.  If we see something isn't working, we're on the phone to the
doc, asking if there isn't something else s/he can prescribe.  Seems
to me, there might just be a lesson here...?

Oh, well.  One thing I've learned is that I can't make myself
responsible for anyone's actions, except my own.  And preaching LC
to them, will just turn them off.  So I bite my tongue and wait for
them to ask the questions, in hope that maybe something will get
through...

Just some Rhetorical Ranting,
FG