The Game Changers Documentary - Watch the preview and the Movie

In this movie (about health and a plant-based diet) there is an entertaining bit with three athletes and a test they did (they were given a meal and their blood was measured each hour thereafter, plus they wore a medical device overnight that measured erections, frequency, and firmness).

The Game Changers Documentary - Watch the preview and the Movie

On NetFlix

Or Amazon

https://www.drkelleyenzymes.com/thegamechanger

The following doctors, who perform the tests, demonstrate clearly how much damage is caused to the circulatory system by consuming animal products.

Dr. Robert Vogel 

https://www.wholefoodplantbaseddiet.com/tag/dr-robert-vogel/

At about 50 minutes

Dr. Aaron Spitz

https://www.urologyhealth.org/living-healthy/podcast/erectile-dysfunction-facts-with-dr-aaron-spitz 

Results of the study in video:

18% reduction in testosterone with meateaters