>>A paleodiet should be a C-P-F % ratio with C < 20 (example: 15-45-40).
>>C = 40 is way too high.


Sears argues that there is inadequate carbs to create sufficient insulin.
According to Sears, while blood sugar levels remain stable and mental
clarity good, one will experience hunger well inside the next five hours
(insufficient insulin to block the synthesis of neuropeptide-Y inside the
brain, which is responsible for hunger).  Sears' goal is to create a
balance - not too much or too little - of blood sugar, insulin, and glucagon
that leaves one with energy, mental focus, and freedom from hunger for at
least the next five hours.

Also, according to Des Maison (Potatoes Not Prozac), extra insulin is
required to push tryptophan over the blood-brain barrier for conversion to
serotonin (usually as we sleep).  The amino acid tryptophan was gained in
our last meal involving protein.  But Des Maison argues that a high glycemic
carbohydrate (i.e. potato) in the evening is necessary for this
tryptophan-transport activity.  A low carb diet would seem to lack enough
insulin for such a tryptophan "push" (yet I rarely hear people reporting
depression and anxiety on a low-carb diet).

Incidentally, Des Maison argues (erroneously, in my opinion) that a potato
is superior to a refined carbohydrate (like candy) because it slowly
releases its glucose thus preventing "beta-endorphin priming" and the
downregulation of neuroreceptors.  This is a faulty argument because the
glycemic index reveals that a potato creates an equivalent glucose and
insulin spike as many refined carbohydrates.

Rob