Can you drink chi tea on the military diet?

I am not an expert: on the military diet. I looked over several sites and one indicated that black coffee was acceptable. If that was the case - would anticipate that tea would be too. But why go on a short diet like this? The military diet (AKA 3 day diet) is a short term diet plan. A specific low calorie diet menu is spelled out & is to be used 3 days per week. Food choices are provided for four “days off”