what stuff do we need that is only in plant food? didn't some cultures survive on only animal foods?
--- In fast5@yahoogroups.com, Heather Twist <HeatherTwist@...> wrote:
>
> On Sat, Nov 7, 2009 at 6:52 AM, carolyn_graff <zgraff@...> wrote:
>
> > here is a comparison of digestive tracts
> > http://www.second-opinions.co.uk/carn_herb_comparison.html
>
> I'm always amazed at what an herbivore can eat! Geese can
> get big and strong living off nothing but *grass*. (I would guess
> in the wild they eat fish too? But maybe not). But chickens
> need bugs, and peacocks eat lizards and snakes, and those
> animals need lots of protein to get big. Mainly because they
> don't break down the cellulose like a goose can. Gorillas
> actually can break down cellulose!
>
> Humans obviously aren't *carnivores* though, because we also
> need stuff that is only in plant food, and our digestive tracts
> seem to be designed to like having lots of polysaccharides.
> And some people really cannot digest meat well (esp. if you
> have low HCL).
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