Gut biome was my first thought too as an explanation.
As far as I can tell fixing gut biome with things you swallow is extremely difficult. Probably not impossible, but fragile as heck.
The only thing that can somewhat reliably do it is a fecal transplant. Probably because you are moving in a whole ecosystem at once so the odd of it sustaining are higher.
This post makes me want to try ketone esters because I do notice I am very productive when fasting, where I am in ketosis. But I only do it a day or two a month because I like food too much.
Gut biome was my first thought too as an explanation.
As far as I can tell fixing gut biome with things you swallow is extremely difficult. Probably not impossible, but fragile as heck.
The only thing that can somewhat reliably do it is a fecal transplant. Probably because you are moving in a whole ecosystem at once so the odd of it sustaining are higher.
This post makes me want to try ketone esters because I do notice I am very productive when fasting, where I am in ketosis. But I only do it a day or two a month because I like food too much.