I was reading an interesting thread the other day about boosting the immune system/autoimmune system. I know little technical stuff, but I often take notes and then ask my doc. etc about a topic. I asked my naturopath about this thread and she said that the immune system and the autoimmune system are two different systems. Unfortunately, lots of medical people, and product advertising especially, do not distinguish between the two systems. A person can have an overactive autoimmune system, but a normal immune system, or any combinations of under/over/normal/weak. Thus there are many possible combinations. Different products affect different systems. Some affect both, some affect only one system. For example, she said, olive leaf extract boosts the immune system, but has no effect on the autoimmune system. I know that this information probably makes everything even more complicated, but it might provide some useful information. I know that I shall start looking more carefully and start asking for clarification re. the possible difference/s between the two system. Hope that this is of some help. Maybe she is wrong, but she is a very bright little button, and is usually right.