Positives

• A long-hauler with low cortisol and low progesterone started 10mg pregnenolone and reported feeling “a lot more calm, like I finally got out of constant fight or flight,” with significant clearing of brain fog Reddit.
  
  
• A patient began 5mg pregnenolone specifically for Long COVID and reported improved mood and cognitive clarity, noting that the low dose seemed to support hormone production without causing dependency Reddit.
  
  

Negatives

• A long-hauler with plummeting testosterone and estradiol tested low for pregnenolone but supplementation alone did not resolve their anhedonia, sexual dysfunction, or brain fog Reddit.
  
  

Hurdles & Side Effects

• A long-hauler warned that anything above 25–50mg of pregnenolone will affect endogenous production and inhibit cortisol, increasing dependency — a particular concern for LC patients already dealing with HPA axis dysfunction Reddit.
  
  
• The patient who found pregnenolone helpful noted that as a hormone, it needs to be approached cautiously given its effects on the entire hormonal cascade, especially for patients with existing low adrenal function and low progesterone Reddit.