What does alanine do?
Alanine is a nonessential amino acid used by the body to build proteins.
Alanine is present in prostate fluid, and it may play a role in supporting prostate health. One study, involving 45 men with benign prostatic hyperplasia (BPH), found that 780 mg of alanine per day for two weeks and then 390 mg for the next two and a half months, taken in combination with equal amounts of the amino acids glycine and glutamic acid, reduced symptoms of BPH;1 this work has been independently confirmed.2
Where is alanine found?
As with the other amino acids, excellent sources of alanine include meat and poultry, fish, eggs, and dairy products. Some protein-rich plant foods also supply alanine
Who is likely to be deficient of alanine?
Since alanine is synthesized in the body and is also provided by most foods that are sources of protein, deficiencies are unlikely to occur.3
Most people do not need to supplement with alanine; for those who do use this amino acid as a supplement, appropriate amounts should be determined with the consultation of a physician.
Are there any side effects or interactions with alanine?
Alanine is free of side effects for the vast majority of people who take it; however, people with kidney or liver disease should not consume high intakes of amino acids without consulting a healthcare professional.
At the time of writing, there were no well-known drug interactions with alanine.