Gloria wrote:Yes, I have tried Histame. I've taken it 15 minutes prior to eating a food relatively high in histamine, such as avocado, but I don't take it regularly. I haven't noticed any difference when I take it, but it doesn't seem to be reactive for me.
These are just my own thoughts, and I could be all wet, but FWIW, I would think that you would need to use an antihistamine for that job, (neutralizing a high-histamine food), and even an antihistamine may not be up to the job, because it may be overwhelmed by a high-histamine food. I could be wrong, but I get the impression that DAO helps to keep histamine levels from building up, by doing regular "housekeeping chores" to reduce surplus buildups. IOW, it works on an incremental basis, (a little each day, to prevent a long-term buildup. I would assume that histame would perform similarly. IOW, I suspect that either would be overwhelmed by a high-histamine food, because of the spike in the histamine level.
Histamine completes the activation cycle in a matter of minutes. By the time the histame could make much of a dent in the histamine spike, the damage would be done, because much of the histamine would have already found an H1 receptor, and "attached", thus completing the reaction. The reason why an antihistamine works, is because if taken before a meal, within a matter of minutes, it should be able to seek out, and "attach" to a high percentage of the available H1 receptors, (on mast cells), thus removing them from the competition. IOW, once the antihistamine "attaches" to a receptor, the histamine from the high-histamine food can't attach to that receptor, and with any luck at all, enough receptors may no longer be available, such that much of the histamine may not be able to locate an "unattached" receptor before it expires, or before DAO, (or histame), takes it out of circulation.
Mast cell stabilizers, (such as cromolyn sodium), help to stabilize the membranes of mast cells, and thereby help to prevent them from releasing histamine, but that won't work against a high-histamine food, obviously, because that histamine is already free, and a mast cell stabilizer won't be able to do anything about it.
Tex