Nausea, headache, and general anxiety - these are familiar hangover symptoms that result from alcohol consumption.
In a study published in the journal Alcohol and alcoholism, researchers at the University of Helsinki and the University of Eastern Finland have shown that the amino acid l-cysteine can reduce hangover symptoms, the University of Helsinki said in a press release on Tuesday.
In the double-blind study, subjects consumed alcohol during three separate gatherings. In addition to alcohol, subjects swallowed tablets containing either placebo, 600 mg l-cysteine, or 1200 mg l-cysteine. The tablets also contained vitamins.
In connection with the gatherings, the alcohol content of the breath and the concentrations of alcohol metabolites were measured from the subjects.
In addition to this, they filled out questionnaires the next morning after drinking alcohol to assess the severity of the hangover symptoms.
The study was led by Peter Eriksson, Associate Professor of Public Health.
Association between I-cysteine and reduction in hangover symptoms
The study found a statistically significant association between l-cysteine and a reduction in hangover symptoms.
The same effect was observed for all types of hangover symptoms, i.e., l-cysteine relieved headache, nausea, stress, and anxiety.
This is the first study worldwide in which a simple amino acid such as l-cysteine has been found to reduce hangover symptoms.
Source: University of Helsinki