The first study, published in the journal Nutritional Neuroscience, showed a complete reduction in the activity of monoamine oxidase-B (MAO-B), an enzyme that degrades the 'happiness' hormone dopamine, within 45 minutes of consumption of a New Zealand Blackcurrant juice. It then slowly Returns to near-baseline levels 24 hours later.
The second study, presented at the Innovations in Food Science and Human Nutrition conference, showed that while undertaking a gentle walking exercise, study participants who consumed Blackcurrant juice voluntarily exercised for longer and reported a more positive mood during the exercise.
The participants also had reduced levels of MAO-B.
Previous research by Plant & Food Research has found that anthocyanin-rich extracts from New Zealand-grown blackcurrants improve exercise recovery by managing exercise-induced oxidative stress and inflammation, improving immunity and minimizing muscle damage.
Blackcurrants have been commercially grown in New Zealand for over 40 years, predominantly in Nelson and Canterbury.