Geetings, Ken, and thanks for your considered response.

I have read Sears' Anti-Aging Zone and the material therein on
serotonin.

A lot of research has been done, most notably by Cohen at Oxford U.,
that the serotonin systems of men and women function differently.
Briefly, women's stores of the neurotransitter are more readily
depleted.  (Naturally Slim and Powerful by Lipetz nicely summarizes this
issue and provides an extensive bibliography with research citations.)

I am not looking so much to "increase" serotonin, but to not become
overly depleted - the result of too many successive protein-based
meals/snacks.  Lipetz, DesMaisons (in Potatoes not Prozac), Arnot (in
Revolutionary Weight Control), and Wurtman (in a number of books),
discuss this and all recommend one carb "hit" a day.

In my years of tinkering with my diet, I have found I feel/function best
with that stinkin' un-Paleo starch hit.  (I prefer it in the a.m., after
a 45 minute race-walk, when glycogen stores are depleted.  I have
protein before bed for the GH release.)

I'm experimenting with the principles of NeanderThin, yet wonder,too, if
perhaps women might fare better on a more "Gatherer-type" diet (to
include tubers?) while men might more happily thrive on a higher-protein
"Hunter-type" diet.  (In fact Thiesen, in Survival of the Fittest,
recommends a "low fat high carb" female foraging diet, but fails to go
into details.)

In any event, the insulin-driven crossing of tryptophan past my
blood-brain barrier for conversion into serotonin is what I seek on a
daily basis. I'd like to do this with sufficient carbs (30 -35g -
unaccompanied by competing amino acids) with fruit (in keeping with
NeanderThin guidelines). Wurtman writes, however, that because of the
variety of sugars contained in fruit (and their different rate of
conversion to glucose), they might not be reliable for serotonin
synthesis.

I hope this makes sufficient sense.  :)  Does anyone have
experience/knowledge of using fruit to stimulate serotonin synthesis?

A sante!
Kathleen