2 days to 1 day for N=1 patients over 1 time period is not significant. "Feeling better" could be real or it could just be cognitive bias. Did you use an app

2 days to 1 day for N=1 patients over 1 time period is not significant. "Feeling better" could be real or it could just be cognitive bias. Did you use an app to record your mood multiple times a day? Were you taking less time (better contration) on cognitive tasks? Measurably fewer aches and pains? Better performance during workouts? Or did you have blood panels done and some values were better? Or none of those things? That you say it's delicious is a confounding factor, as well, because eating food that tastes better improves your mood which can make you feel better without any nutritional or microbiome-related health effects. To be clear, I'm not criticizing fermentation at all, just whether this anecdote provides any meaningful evidence for anything. Also, even if there is some statistical significance since "a couple" apparently means far more than 2, since fermented foods displaced other things, what did they displace? Could those have been making you unhealthy rather than fermented foods making you healthier? You'd have to trial non-fermented dairy and tea and veggies as a control, and that control doesn't work very well with dairy because non-fermented dairy is high in simple sugar which can be bad all by itself.