"I am not going to go vegetarian and compromise my health. "

I am not a pure vegetarian myself. I do try to limit my consumption of meat to 4 meals a month or less. Others might decide that an average of 2 meat meals a week might be right for them. Contrast this with many Americans who eat 10 or more meat meals a week. Beef is a good source of iron that is well absorbed. Vegetarian iron isn't nearly as well absorbed, so much more of it needs to be eaten. Taking vitamin c with a meal greatly increases iron absorption. As for vitamin B12, one can eat dairy products or eggs to get that. There are also vegetarian vitamin B12 supplements.