L-Glutamine is a common amino acid that is an important component of many biological processes within the body. In fact, it’s the most abundant amino acid in the human body ! The majority of it is stored in our muscle tissues, where it assists with maintaining muscular health and repairing damaged tissues. Normally, the body can make enough glutamine to sustain itself, but when the body is subjected to stress (. an intense workout), glutamine stores are depleted. This is where L-Glutamine supplements come into play; they replace these lost stores, helping to improve recovery time and efficiency.
Such up- and down-regulation of metabolic pathways is often a response to changes in concentrations of key metabolites in the cell. For example, a cell may take stock of its levels of intermediate metabolites and tune the glycolytic pathway and the synthesis of glucose accordingly. In some instances, the products of a metabolic pathway actually serve as inhibitors of their own synthesis, in a process known as feedback inhibition (Figure 5). For example, the first intermediate in glycolysis, glucose-6-phosphate, inhibits the very enzyme that produces it, hexokinase.