There's no scientific proof of why it happens, but researchers think it could be from bacteria in the urine or a change in how the amino acid tryptophan is being broken down in the body.

Molecules in blood and urine may reveal how much energy a person consumes from ultraprocessed foods, a key step to ...

Researchers developed and validated blood and urine metabolite scores that objectively measure ultra-processed food (UPF) ...

Ultra-processed foods (UPFs) are linked to a host of health problems. It may now be easy to detect how much of these foods a ...

Researchers identified specific metabolites in blood and urine that can accurately predict how much ultra-processed food a ...

The new infusion for maple syrup urine disease is for patients who cannot have an oral or enteral branched-chain amino ...

Using a deep-learning computer model, they found that D-alanine boosts the activity of genes related to both gluconeogenesis ...

Of 20 plasma amino acids measured, valine, leucine, isoleucine, tyrosine and phenylalanine were increased, and glycine decreased, in obese subjects compared with age- and sex-matched controls.