Great that you doctor is prepared to support you on the eight week BSD Shacks and good news that day one has gone pretty well. Be cautious about using flavoured yogurt, as they come with added sugars, which will push up the carb content and it is keeping the carbs low, which is essential on the BSD. Bear in mind that all natural yogurts are not equal and some are much creamier than others, making them much more palatable, however, if you really can’t tolerate the blueberry and almond smoothie, I would suggest replacing it with something else.
Hope you continue to find the BSD easy to stick with and will soon be reporting great results. If you need advise or support, shout out and someone on here will be bound to respond.