I went back to the data, and the honest answer is more reassuring, and more practical, than either the fear or the hype suggests
In an open uncontrolled trial in 20 men with idiopathic infertility and a low testosterone-to-estrogen ratio, three months of treatment with letrozole resulted in improved sperm motility and morphology, reduced sperm DNA fragmentation, increased testosterone-to-estrogen ratio, and four spontaneous pregnancies
Who Should (and Shouldnt) Use Direct Meds
Immune Strength & Cellular Vitality Reinforces immune defenses, boosts mitochondrial energy production, and helps maintain consistent energy levels throughout the day
Its what inspired her to pursue a career in nutrition
N Engl J Med 1997;337:1419-28