Yes, I’m very certain. There is no doubt given what my diet has been, which is very consistent and when Soylent became part of it. If I drink one, I will get a migraine. Causation and correlation are 1:1. I don’t think everyone’s experience will be the same, but if you’re susceptible to migraines, be warned. Yes, I’ve also seen my Doctor about it, in fact today I saw them today and they agreed something in this was a trigger for me. Who knows what it is.
I’ve have gone a long time without having Migraines. I drink a Soylent, bam, get Migraine. I think to myself, where did that come from? Next morning, I drink a Soylent, another migraine hits me. I then wait a few days, then I grab another Soylent, bam another migraine. I don’t know what other proof you need, but that was enough for me. I haven’t had another Soylent and I haven’t had anymore migraines.
Which sucks, because I really enjoyed the Cacao flavored drink.