As for mandarin, only 4 tones, which is already complicated enough for the learner. Both Cantonese and Mandarin share the same written characters, but there are Chinese characters in Cantonese which are not used in Mandarin. read more
Nutritionally, all mandarins are similar. For a 50 calorie mandarin, you get 2 grams of fiber, and just over 2 teaspoons worth of sugar. Each mandarin will provide half a day's worth of vitamin C, as well as multiple other antioxidants. Compared to oranges, mandarins are easy to peel and separate into individual sections. read more