i added them as a source of b5, but they also come with e and iron. i knew they were high in omega 6s, so i only use a tablespoon, which is about 10 g and i made sure to get them both uncooked (because it may damage the nutritional content) and unsalted. but, this may make them more prone to contaminants.
if i think back, there were sunflower seeds in the non-fibre bowl when i tried to isolate it that way. i considered them least concern, so they were always a base component until recently. and, i don't think i've ever reacted to an iteration without them.
more testing is needed, but this might be it. and, if it is, i'll just get rid of them.