L-Threonine
Threonine is an essential amino acid: the body cannot make it and needs it from food to build proteins.
Also listed as Threonine
Why does it appear in gut-health claims?
Mucins, the proteins that help form the gut’s mucus barrier, are rich in threonine. Animal research, including work in piglets, links threonine supply with mucus production and intestinal function. This gives the gut-health hypothesis a concrete biological basis, while leaving open whether extra threonine improves digestive symptoms in people. 1
The cited gut review concerns animal physiology, not demonstrated symptom relief in human supplement users. 1
Effects by health goal
Open an effect to see the studies behind its rating. Bars show the size of the effect; the letter grades the evidence.
Essential Health1 effect
No study is linked to this rating.
Immune Support1 effect
No study is linked to this rating.
Gut Health1 effect
No study is linked to this rating.
Fitness1 effect
No study is linked to this rating.
Organ Function1 effect
No study is linked to this rating.
Other effects1 effect
No study is linked to this rating.