Threonine (L-Threonine)

Scientific Name:  2-Amino-3-hydroxybutanoic acid (C4H9NO3).

Other Names:  Thr, T, threonine.

L-Threonine is one form of the amino acid threonine, which is one of the twenty naturally occurring amino acids. 

Because it cannot be produced within the human body, L-threonine is an essential amino acid, meaning it must be ingested for a healthy, balanced life. 

Forms of L-Threonine: Supplemental forms of L-threonine are often sold in capsules or tablets, as well as in powder form.  Typical dosages range between 103-500mg daily.

Of all forms of threonine, only the L-stereoisomer appears in the protein of mammals.  L-threonine is necessary for the creation of glycine and serine, the two amino acids that are used in the production of elastin, collagen, and muscle tissue.

Origin of L-Threonine: Foods rich in L-threonine are:

  • poultry
  • fish
  • cottage cheese
  • sesame seeds
  • lentils
  • bananas
  • carrots
  • green leafy vegetables

Plants and microorganisms are able to produce threonine from aspartic acid.

Home Remedies using L-Threonine:

Benefits and Uses of L-Threonine: 

L-Threonine is used in the formation of collagen and elastin in the skin and can aid in fighting fatty liver and maintaining other healthy liver functionality. 

It assists in absorption of nutrients, helps to produce antibodies, and promotes the growth and activity of the thymus. 

Threonine is also essential in the biosynthesis of vitamin B12.

L-Threonine has been used as a partial treatment for mental health and can aid in relief of irritability and correction of a generally difficult personality due to deficiency. 

Threonine supports the health of the central nervous system, immune system, liver function, and the cardiovascular system. 

It may also be useful in treatment of symptoms of Multiple Sclerosis and Lou Gherigs Disease (Amyotrophic Lateral Sclerosis or ALS).

Side Effects of L-Threonine: 

L-Threonine is not as well researched as many other amino acids, and its overall functionality as part of animal protein is vague.  Side effects are as yet unknown, though it is not believed that there is a level of toxicity or an apparent capability of overdose.