The short answer is YES. If you are, you adapt, just like you would if you had any other issue to deal with, like wearing glasses. I say this as a person who spent years trying to eat "normally" only to accept that normal for X is not normal for Me. Figuring all this out can take a while. Do yourself a huge favor and read Primal Blueprint, and if you have a scientific bent, read the bible on this subject by Gary Taubes, Good Calories, Bad Calories.
This time, like all times, is a very good one, if we but know what to do with it. Ralph Waldo Emerson
Any given day you are surrounded by 10,000 idiots. Lao Tsu, founder of Taoism