I was reading through the Deadlock Quartet Symptom List and came across this interesting anecdote by @Freddd: In my own journey to regaining health, I'd read several books about chronic conditions, health, and diet. One of them recommended bone broth, liver, and eggs as supplemental foods, and I had experimented with adding them to my diet. My experience with liver is memorable because it made me feel really well at first, but then I felt like I had gotten food poisoning the next few days and I haven't had the guts to try it since. In retrospect, I think I was experiencing folate deficiency symptoms. Once the food poisoning-like symptoms had gone away, I was left feeling worse than before I tried the liver, and I kept trying to figure out why. That eventually led me here, and I keep discovering new things, and feeling better every day. I'm really grateful to all of you for posting your stories and sharing your knowledge.