I bought a box of Soylent bars to use as occasional between-meal backups, since I sometimes miss a meal while traveling or because I forget to eat lunch. Over

I bought a box of Soylent bars to use as occasional between-meal backups, since I sometimes miss a meal while traveling or because I forget to eat lunch. Over the course of a few weeks I ate two or three bars and was fine. Then one day I missed lunch, ate a bar, and about four hours later started feeling nauseous and experienced the worst diarrhea of my life. Let's just say I'm glad it hit me when I was at home, within tightly clenched shuffling distance of a good sturdy toilet. By the next morning I felt fine. I have no known food allergies or sensitivities. On no occasion did I eat more than one bar in a single day, and I don't think I ever even ate bars on two consecutive days. I do remember thinking, while eating that last bar, that it didn't taste quite as good as I remembered the other bars tasting. It seems possible that the bars contained inconsistent amounts of an ingredient and the last one just happened to have a larger amount of whatever did me in. I sure would like to know what it was so I can avoid it in the future.