Tortoise vrs hare, ie: carbo vrs fat!

[Sarah Ralston <ralston@AESOP.RUTGERS.EDU>]

Darn. I wasn't going to get caught up in this. But I am responding only to
your jibes that 
need clarification for the general public. Re: your sneers at my
motives/etc I think the
ridecampers can sort out for themselves if they think I'm totally averse to
your supplement 
or if my interests are only in "losers" by reading my initial post. 


>> Tom openly has admitted that the high
>> glucose/insulin regimen he promotes will inhibit fat utilization but this
>> is mainly because insulin inhibits lipolysis, not that it blocks the krebs
>> cycle.
>
>ti: It inhibits muscle uptake of fats. 
>

Tom still hasn't learned the difference between lipids and volatile fatty
acids (acetate, butyrate and especially propionate, from which the horse
can derive over 50% of its glucose if adapted to a fiber ration). Beth,
correct me if I am wrong regarding human nutrient utilization, but I do not
recall propionate or butyrate being major energy sources for humans,
though, of course, acetate can be shunted through the citric acid cycle.

>>>In a long HARD (read lots of climbs and caution needed on the trail)
>> ride like the Tevis, one of the reasons Susan's work on body condition
>> showed that horses carrying a bit more weight (body fat) did better than
thin horses....>

>>TI: who says it was body fat? Very unlikely. More likely, extra muscle
glycogen 
>>stores.
>

The original work on condition scoring, in which they actually killed the
horses and accurately determined body fat % (lovely research-but it did
provide some useful info), showed a significant correlation with the
numerical score and % body fat not glycogen.

>>Carbo loading during a ride may work
>> for the elite endurance race horses, but if used improperly and/or by
>> inexperienced riders, could end up in more "boinks". >
>>
>ti:Name a single instance.
>
>Your own story of the guy who "misused" your supplement.
>
>
Sarah L. Ralston, VMD, PhD, dACVN
Associate Professor
Department of Animal Science
Cook College, Rutgers, the State University of New Jersey
84 Lipman Drive
New Brunswick, NJ 08901

Ralston@aesop.rutgers.edu
732-932-9404


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