Well, do you mean an herbal infusion that has orange (where upon you would extract some Vitamin C) or an orange flavored black tea (wherein you owuld extract a favorite smell or taste but nothing substantially "beneficial" from the orange, though black tea has its own properties)...
Not a big fan of flvaroed black, I HAVE found that a cuppa black tea sipped while peeling and eating an orange is a wonderful pick me up. Not only from the caffeine in the tea, but peeling an orange releases an aromatherapeutic frangrance which relieves minor blues or sluggishness.

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