Haven't read all these replies. Sorry, but they're too long for me today.
Communicate! Even without the D you need to do this.
Find out her diet objectives: types and quantity of carbs. Learn how to count carbs. Learn what carbs are! Onions are carbs. Carrots are carbs. Lettuces are not carbs
Meats and fats generally do not count but do affect. Find out how. Learn about alcohol. That can really mess us up if we don't know how to handle it properly.
Understand that D changes as we age. One day she'll hit a wall, probably in her mid-30's. Wham! Hers and your life will change drastically. You'll be going to bed worrying about having to dial 911 for the rest of your life.
Communicate. Get on the same page!
