Satsuma Mandarins are a specific type of mandarin orange, originating in Japan more than 700 years ago. They are a lighter orange, sweet, juicy, and seedless. They are also the easiest variety to peel. The most tender, easily damaged type of mandarin, Satsuma mandarin oranges are harder to find fresh in stores. Bursting with vitamin C, just one satsuma can provide nearly half of your daily recommended intake. Better than drinking orange juice alone, satsumas contain fibre, which fills you up, helps keep the colon healthy, controls blood sugar and also lowers any raised cholesterol.