I have severe CFS/ME. I switched to a keto diet 3 years ago which helped a lot with sudden onset blood sugar issues, and was able to eat a pretty varied keto diet. However, several months ago, I deteriorated and began to develop intolerances very suddenly. It began with salicylates – avocados were giving me breathing problems, so I had to cut them out, then robust olive oils, nuts, etc.
For the past 2 months, I’ve been down to meat, chicken, eggs, fresh garden salads and peanut butter (plus a little coconut oil in coffee). I began to notice that even ‘natural’ peanut butters were causing issues; I assumed they could be too rich/oily so switched to a spread and was okay, but then even that became problematic. I was also boiling eggs to avoid using oil, and noticed that would give me GI distress.
I began to freak out because it seemed I was running out of fat options, and keto with protein alone doesn’t seem sustainable (fat is calming, helps me sleep etc). Someone on a forum suggested trying tallow. So I bought a fancy bottle of grass fed tallow online and made sure to scramble my eggs in it last night (plus I dissolved some tallow in hot water to drink for extra fat to sleep). Shortly after eating the tallow-eggs, I was hit by sinus congestion, anxiety, diarrhea. I slept okay but today have the worst brain fog and feel like I have the flu.
Can anyone guess why this might happen? Is it adaptation? I’ve read tallow can cause detox symptoms. I just can’t see why I would be intolerant since I eat fatty meat without issue, and eggs have never caused this reaction so I have to assume it’s the tallow. Really at a loss here.