~~Scientific studies have shown the correlation between amino acids and weight loss. Amino acids are the core of all cells in the human body. Intake of amino acids during weight loss insures maintenance of muscle mass while losing fat. When consumed through dietary sources, amino acids perform two essential tasks in the human body: synthesis of proteins and various bimolecular or oxidization to urea and carbon dioxide as an energy source.
There are eight essential amino acids which the body can’t create enough of on its own, so they must come entirely from food sources. Without these amino acids, any weight loss efforts will be hindered.
Amino Acids: How Do They Aid Weight Loss?
Each of these amino acids aids weight loss in different ways.
• L-Tyrosine and L-Phenylalanine work together to create active amines including epinephrine. These active amines cause reactions in the brain aid to weight loss.
• L-Carnitine also naturally suppresses weight. It works differently than the others by transferring fat to be metabolized into energy rather than storing it. 
• L-Tryptophan is a precursor to serotonin.
• L-ornithine is crucial for removal of bodily wastes, and research also suggests this amino acid may help boost your energy level.
• L-leucine, like other essential amino acids, helps maintain muscle mass
• L-Lysine helps convert fatty acids to energy, aiding in weight reduction