Your point about excess carbs being converted into fat is bogus. You have to think of the body as a whole system. Calories in - Calories out over the course of a day.
Lets say you consume 1500 calories in a day and use 2000. 500 calories are burned each day. Lets say the protein shake in question is 200 calories.
Scenario 1: You eat 1500 calories all before during the course of the day, including your 200 calorie protein shake. Your body burns up 500 calories worth of fat.
Scenario 2: You eat 1300 calories during the day. Your body burns 700 calories worth of fat. You then eat a 200 calorie protein shake after dinner. Your body stores 200 calories of fat. Your net for the day is still your body has burned 500 calories worth of fat.
This is an overly simplistic view of things and not how it actually works but my point is that, even using the assumption that calories consumed before bed end up as fat, the net effect is the same.
Your point about excess carbs being converted into fat is bogus. You have to think of the body as a whole system. Calories in - Calories out over the course of a day.
Lets say you consume 1500 calories in a day and use 2000. 500 calories are burned each day. Lets say the protein shake in question is 200 calories.
Scenario 1: You eat 1500 calories all before during the course of the day, including your 200 calorie protein shake. Your body burns up 500 calories worth of fat.
Scenario 2: You eat 1300 calories during the day. Your body burns 700 calories worth of fat. You then eat a 200 calorie protein shake after dinner. Your body stores 200 calories of fat. Your net for the day is still your body has burned 500 calories worth of fat.
This is an overly simplistic view of things and not how it actually works but my point is that, even using the assumption that calories consumed before bed end up as fat, the net effect is the same.