Hi, I have had leukopenia (neutropenia) for about 16+years. In the beginning, I had a bone marrow test. The result was that I was making normal white blood cells, but “something” was destroying some of them. For awhile, a hematologist tested them biweekly, then monthly, then every 3 months. For the past 15 years, my Internal Medicine doc tests them every 6 months. They remain stabile. The lowest they have been is 2.0, the highest is 3.2. The low cells have not affected me at all in my daily life. I care for sick grandkids, travel, etc. My colds don’t seem to last longer than other people’s. Other than hand washing a lot, I don’t do anything extraordinary to avoid getting sick. I am a retired dietitian and did a lot of research in diet and white blood cells.. A healthy diet helps in many ways and I try to eat pretty healthy, but haven’t found evidence, either personal or in the literature that it can raise WBC. I did find one interesting thing. There is an autoimmune leukopenia (can’t remember the name of it). The low white cells started at about the same time as my first bout of PMR, which may also be autoimmune. No doctor has ever felt this was related. At this point, I rarely think about it, except when I get my blood counts done.