This is something unexpected which really happened to myself, just after having started a moderately low carb regimen. I dropped my carbs intake to about one third of my previous amount and now it is in the vicinity of 90 grams per day.

I observed a noticeable, significant decrease in libido. This was interesting and unexpected, since I'm not practicisng any caloric restriction and am regularly eating eggs, which usually tend to have the opposite effect on me.

I used to ingest lots of honey. So I was wondering whether it had perchance a boosting effect on libido???

I'm not really anymore in the reproductive age, so I have no immediate concerns about it, but I've been ruminating this baffling issue.

Today, I came across a Youtube video, an interview with Dr. Attia.

He just explained that. When, as a consequence of decreasing carbs, insulin levels decrease, SHBG (Sex Hormones Binding Globuline) increases, binding testosterone. So, free testosterone, which is evidently the testosterone which affects the sexual functions, is lower hence lower libido.

Has some of you dudes noticed this effect?

I also find almost incredible that it was so sudden. So, according to dr. Attia's explanation my serum insulin concentration dropped almost overnight after cutting carbs. I've been having cravings for sure.