[m_ram]

It looks like it's not quite 30%, but still high enough to make an opt-out worthwhile [1]. As someone who is afflicted, I can say that it would be a deal-breaker.

[1] http://blog.23andme.com/23andme-research/cilantro-love-hate-...

[lazyant]

Ooops you are right, I remembered incorrectly the %