Runners - What About High Protein?

NOTE: "DIETARY PROTEIN LARGELY OR FULLY SUBSTITUTES FOR MUSCLE PROTEIN IN GLUCONEOGENESIS." Even when discussing starvation most critics of lowcarb miss the mentally adept boat.

"The body adapts to starvation and reduces the need for protein-dependent gluconeogenesis by boosting its production of ketones, a fuel ALTERNATIVE to glucose for MOST CELLS.

Circulating ketones reach maximum levels after about ten days of fasting and now substitute for much of the glucose requirement of the central nervous system. This drastically reduces the need for catabolism of muscle protein."

"With reduced protein catabolism, urinary nitrogen excretion also declines. And there is a shift from the excretion of urea to a predominance of ammonia loss. This shift toward ammonia versus urea parallels the increased production and excretion of keto acids, and serves to MAINTAIN ACID / BASE BALANCE."

"The overall point is that muscle is a valuable reserve of carbons that can be used for glucose production when needed. However the body prevents excessive losses of muscle protein over long periods of fasting by adapting the central nervous system to utilization of ketone bodies for fuel."

"A parallel adaptation in the production and excretion of ammonium ions by the kidney neutralizes the increased ketone bodies (principally beta-hydroxybutyric and acetoacetic acids). Without the latter adaptation, such large productions of keto acids would cause a severe ketoacidosis, as well as a loss of large quantities of sodium and potassium ions (accompanying ketones spilled into the urine) Therefore, unless one is an insulin dependent diabetic or literally starving TO DEATH due to a lack of food, there is little or no danger from ketosis which is not characterized by a simultaneous RISE IN BLOOD GLUCOSE and BLOOD ACIDITY " (END QUOTE)

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