When I started the BTD, my family had two Os and two As. Then my son left for college, and I was outnumbered except on holidays. I adjusted by fixing myself Type O lunches and serving dinners that we all could eat. That worked really well until this year. My Type As are going in different directions.

My husband is craving grain. There are a lot of grains that are beneficial for As, and I'm serving them. But what he really wants is more rice, noodles, and wheat rolls, all of which are neutral.

My daughter on the other hand is shunning grain. She read that avoiding wheat is one of the keys to Type A weight loss. She is over compensating and eating very little of even the beneficial grains. What she really wants is lots of salad and lots of fruit.

Today we got home from church and everyone was hungry. My husband wanted soup, salad and rolls. "Don't just thaw out one," he said. My daughter wanted raw vegetables and peanut butter with fruit. "I'll warm up a little bit of last night's chicken, too," she said. I had leftover parsnips and ground beef. There weren't any green vegetables in the refrigerator, so I quickly sautéed some okra. I felt like a short order cook!

The positive side of this is that the BTD leaves room for a lot of individuality. This is a diet that starts with the premise that we are not all alike. Even within the blood types there is plenty of diversity. The negative side is the complexity of serving a family style meal.