My surgery was 1 Oct 2014 and from the start was told minimum of 60g of protein per day. I had heard, and now experienced first hand, that lack of sufficient protein can result in hair loss. If I am under 80g a day I notice a lot of hair loss. Keep up your protein, it not only helps with weight loss, but side effects! As for carbs I was told to keep under 15g carbs per meal.