Individuals trying to replenish muscle glycogen using sources of fruit will
typically find this doesn't work very well as fructose (fruit sugar) is used
to preferentially replenish liver glycogen. The liver can store
approximately 60-100 grams of glycogen and once this is full any additional
fructose suppplied by fruit intake will be converted to fat with muscle
glycogen largly unaffected. The bottom line is that fruit is a good source
of immediate energy and a couple of pieces per day can be used to keep liver
glycogen stores full but it's a poor source of long term energy for athletes
and others who need full muscle glycogen stores. This makes sense when you
think of how fruit occurs in nature...quite convenient and can be eaten
quickly.
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp.