Should You Vacation If You're On Phase 3 Of The HCG Diet? Vacationing during Phase 2 of the HCG Diet is almost never a good idea, and should be avoided if at all possible. It is just simply too difficult for a person to try and follow the strict 500 calorie protocol . Not to mention that most people are forced to eat out almost everyday while on vacation. Unfortunately, there are not too many other options, that is unless you have a place to cook your meals. But that's during the 500 Calorie Diet, what about the Maintenance Phase? Well, a vacation during Maintenance is not completely out of the question. However, I would try to wait until after you start introducing sugars and starches back into your diet. This would make things much less stressful for you and everyone you're vacationing with. Because even though this part of the diet is not as restricted, some argue that it is even more important than the weight loss itself; and to be completely honest, I don...