Saudi Arabia
A 30-year-old male asked:
I did an experiment, i replaced all meat with soy protein.one month later, muscle mass didn't change.does that mean soy doesn't lower testosterone?
2 doctor answers • 5 doctors weighed in

Dr. Philip Kernanswered
Endocrinology 45 years experience
Protein and T: Muscle mass is controlled by many factors. Dietary protein is one, but if you have adequate dietary protein, as you likely did originally, then more protein will not help. Soy protein does not lower T. That is a myth. If you're a normal male, your T is what it is, and is controlled by your pituitary. If you want more muscle, then you need to do resistance exercise training.
Created for people with ongoing healthcare needs but benefits everyone.
3.5k viewsReviewed >2 years ago

Dr. Alan Feldmananswered
43 years experience
Confused: You sound confused about how the body works. There is very little relationship between what you eat and how your testosterone level is. Muscle mass will be mostly related to how much exercise you do, not whether you eat meat or soy protein.
Created for people with ongoing healthcare needs but benefits everyone.
3.5k viewsReviewed >2 years ago
Last updated Sep 29, 2016
People also asked
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $44!
50% off with $15/month membership
Disclaimer:
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.