Final answer:
Excess dietary amino acids are converted into glucose, ketones, or nitrogenous waste such as urea, which is then excreted in urine. Constant overconsumption of amino acids can lead to nutrient imbalance and health issues.
Step-by-step explanation:
When amino acids are over-supplied by the diet, the body will utilize them through several metabolic pathways. Since the body cannot store amino acids, excess amino acids are converted into molecules that can be utilized for energy production or stored. This process involves the removal of the amino group, leading to the production of ammonia which is then transformed into urea through the urea cycle, allowing the safe excretion of nitrogenous waste in the urine. If not used for energy, excess amino acids may be turned into glucose or ketones. However, consuming too many amino acids, such as through amino acid supplements, can create an imbalance and potentially lead to deficiencies in other amino acids.
Therefore, it is important that amino acid intake from protein in the diet or supplements is balanced to avoid the potential for toxicity or nutrient deficiency. Regularly exceeding the necessary dietary protein can lead to the overuse of the body's mechanisms for dealing with excess nitrogen and other byproducts, which can have detrimental health effects.