The Threonine Benefits
Threonine supports the immune system by aiding in the production of antibodies, and because it is found largely in the central nervous system, may be helpful in treating some types of depression. Threonine supplementation may also be useful for treatment of Lou Gherigs Disease, also know as Amyotrophic Lateral Sclerosis (ALS), because it increases glycine levels in the central nervous system (administering glycine is ineffective, since it cannot cross into the central nervous system).
Threonine is an essential amino acid, which means it must be obtained from dietary sources. Dairy foods, meat, grains, mushrooms, and leafy vegetables all contain threonine, so threonine deficiency is not likely if you have a balanced diet. However, strict vegetarians or vegans may want to consider threonine supplementation, since meat is by far the more superior source of this amino acid threonine content of grains is very low. Symptoms of threonine deficiency include emotional agitation, confusion, digestion difficulties and fatty liver.
Threonine is available in protein supplements such as protein powder/bars and amino acid tablets. The standard dose is between 103 and 500 milligrams per day. Exceeding the recommended doses of threonine can disrupt liver function, and cause the formation of too much urea, and consequently ammonia toxicity, in your body.