Umeboshi! The Japanese pickled plums that packs a sour-salty sweet punch. Incredibly healthy, samurai warriors would eat one daily to combat fatigue and aging.

Their powerful acidity has a paradoxical alkalinizing effect on the body, neutralizing fatigue, stimulating the digestion, and promoting the elimination of toxins. This is the Far Eastern equivalent to both aspirin and apple; not only is it a potent hangover remedy for mornings after; more than that, an umeboshi a day is regarded as one of the best preventive medicines available. (Mitoku.com) 

How do you like your pickled plums?