Can somebody help me with my questions as I cannot get the straight or correct answer after much google and internet searching. I am trying to find out about how testosterone is made from cholesterol and how the levels of LDL and HDL either high or low effect testosterone levels. is it simply a case of just having higher total cholesterol to increase testosterone higher, with the levels of the 2 lipoproteins LDL and HDL whatever they may be not important for higher T levels? Or is the total cholesterol levels less important, and is it a case of higher LDL or higher HDL levels that increase T levels? Is testosterone increased by high LDL or High HDL levels? Is low LDL good or bad for testosterone levels? I have read probiotics/or just certain strains of probiotics can lower total cholesterol/ and or LDL levels Is this true, is it a fact has it ever been proven and if so how much does the level or levels decrease from probiotics? I wish to use probiotics for ibs but I do not really want them to lower cholesterol if it will effect my Testosterone levels. Thanks anyone for decent helpful educated replies to my questions. All the best thank you.