What was measured
Free testosterone
Three ingredients have been read against free testosterone in this library.
This page is not a ranking. Ingredients are listed by name, in alphabetical order.
Still to read against free testosterone
Every ingredient on our to-read list for free testosterone — three of them — has been read against it.
Of the 58 ingredients in this library, three have been read against free testosterone, from four sources. Two of these three rest on a single source, with nothing yet to check them against. On one, the sources say different things, and its line below names every direction reported.
An ingredient that is not named above is not a gap: nobody set out to read it against free testosterone, and this library holds no record of having looked and found nothing.
The three ingredients read against free testosterone
The numbers behind these lines are not on one scale. The findings here were reported in two different units, and two of them record no unit at all. Each source read a different group of people, over a different stretch of time, in the units it chose.
- Boron and free testosteroneTwo sources, saying different things: one measured higher and one found no clear difference
- Myo-inositol and free testosteroneOne source, measured lower
- Tongkat Ali and free testosteroneOne source, measured higher
Read next
The other 14 things measured under Hormones, thyroid and fertility
- Estradiol 2
- Free thyroxine (fT4) 2
- Growth Hormone (Somatotropin) 1
- Neural Tube Defect Risk 1
- Pre-eclampsia incidence 1
- Prolactin 1
- Sex hormone binding globulin 3
- Sperm concentration 1
- Thyroid Peroxidase Antibodies (TPOAb) 1
- Thyroid Volume (ultrasound) 1
- Thyroid-stimulating hormone (TSH) 3
- Total sperm motility 1
- Total testosterone 5
- Total Thyroxine (Total T4) 1
All 136 things measured in this library
This is a library, not advice. No recommendation, no dose, no diagnosis, no ranking. We never ask about your symptoms, and nothing here is tailored to you.