Being on P3 during a trip like this is much easier than P2 – the challenge, of course, is avoiding all the yummies, but basically, if you can just make good choices of lean meats and veggies while there, that is best. Try to fill up on low carb veggies – the fiber in them will help you feel fuller so that you won’t eat as many calories. Try not to eat too much of calorie dense foods for the first 2 weeks of P3 like nuts or cheese. These have a lot of calories in a small space, and that can make them very easy to overeat.
Also surprisingly, while salads aren’t bad, salads are not very filling and the dressing is usually very high calorie and often contains sugar, so choosing more dense vegetables like steamed broccoli and cauliflower will fill you up much better for fewer calories.
For salads, getting oil and vinegar or lemon on the side to make your own dressing will give you control over the calories in the dressing. There are about 40 calories in 1 tsp of olive oil, so if you use your teaspoon to divvy out your dressing you can be in control of the bulk of the calories in your meal that way.