Boron supplementation may decrease SHBG, which can increase libido, especially when SHBG is elevated due to a ketogenic diet.

“So if you have a very high SHBG, boron can acutely help lower it usually in a dose of 5 to 12 milligrams per day. It's not really a sustained effect, but boron is depleted in soils in many countries.”

“that did seem to decrease my shbg which went up on a ketogenic diet”

“i do see shbg sex hormone binding globulin go up very high and then improve when you add back carbohydrates”

“a supplement of boron and i did feel increased libido probably because the shbg which was inappropriately elevated from long-term ketogenic diet strict carnivore was perhaps decreased by boron”

“Boron does appear to have effects on sex from one binding globulin which will affect levels of free testosterone”

“my sex hormone binding globulin if you guys are familiar with my history and in connection with iron you'll understand the story but if you're not I will tell the story quickly so the basic gist here is that my sex hormone binding globulin which is a protein in the human blood like albumin that carries our sex hormones has been elevated for a long time and when I was on keto my shpg was in the 120s at one time so low carb appears to raise shpg”