All of us have dietary strengths and weaknesses, just as we have strengths and weaknesses in other areas of our lives. No one is perfect — and that's fine! But if you're like most people, there are a few things you're doing out of habit that are sabotaging your efforts to control your blood sugar and lose weight. If you change just one or two of them by setting your mind to it, you'll reap rewards in spades. First, though, you have to recognize them.