DANGER Too Much Protein......

quote:

Toxicity
Dietary protein consumed in excess of requirements is not stored, but is deaminated followed by
oxidation of the carbon skeleton through pathways of glucose or fat metabolism, or its storage as
glycogen or fat, depending upon the specific amino acid and the energy balance at the time. The
nitrogen waste generated is excreted in the urine as either urea or ammonia.
High protein intakes can increase urinary calcium excretion, but the effect on calcium balance is
controversial since amino acids also increase the efficiency of intestinal absorption. Other health
effects of high protein intakes are less clear including the relationship of long-term high protein
intakes to risk of renal disease or of diabetic nephropathy.
The effect of exercise on protein requirements is not as much as commonly believed. Endurance
athletes actually have a higher requirement than body-builders due to catabolic losses of lean
body mass following aerobic exercise. Nevertheless, this increased requirement can be readily
met without supplementation when the high energy intakes required by athletes are consumed.
Use of amino acid supplements may actually interferes with synthesis of body protein by creating imbalances. Since amino acids compete for absorption, presentation of large quantities of free amino acids to the intestinal mucosal surface reduces the amount that can be absorbed from the available supply.