In a message dated 9/4/98 3:00:40 PM EST, [log in to unmask]
writes:

<<  Some cells, such as the cells in fast-twitch muscle fiber
 and certain brain cells, have to have glucose, so these would
 need adequate B1 to use it.  In short, the B1 requirement may
 depend upon whether or not one is in ketosis. >>
Tissue slice studies have shown that ketone bodies are utilized preferentially
to glucose, I have heard Atkins say this on several occasions, specifically to
address this glucose and the brain claim.