Posted by JohnB (206.165.44.66) on September 07, 1999 at 08:32:35:
In addition to MSG I have found Niacin, in 100mg and above, to be a severe trigger, particularly if mixed with vitamin C. I don't seem to have a problem with it if it is a small component of a multi-vitamin. At one time I was told that niacin and vitamin C taken together in doses of 200mg niacin and 1000mg C would help with vascular problems. Tried it twice and had absolutely intractable 10's that lasted 2-3 hours no matter what I did. Watch out for that one!