This is my first post here in this learned community (where, in medicine, I am not learned). So, timidity aside, here goes:
I have long been a health and fitness fanatic. I run a mile before breakfast, after doing lots of other exercises. Being otherwise healthy (age 61), a long-standing question has been: Why have I had such a need for massive (risky) doses of ED drugs?
I have long consumed flax seed, ground freshly in a little coffee-style grinder, then added to my breakfast. The benefits of flax (lignans and oil) are long. Less well-known are downsides such as lower testosterone:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2703189/https://www.ncbi.nlm.nih.gov/pubmed/11445478
My experience was similar to this blogger:https://www.nuhs.edu/christian/2011/3/1/testosterone-and-flax-a-male-nightmare/
Substituting chia for flax restored some effectiveness to ED drugs which, after all, need testosterone to work. Another, decisive, part of the ED puzzle was green tea extract:
I have never cared much for the taste of green tea. To get those wonderful catechins, I took a 1-ml scoop of green tea extract 2X per day. It was easy enough to swill down with minimal discomfort. Then I ran out. Instead of simply ordering more, I decided to try green tea again. I found that matcha green tea powder in a glass of water tastes pretty OK. Then came the surprise: After about four weeks, my need for ED drugs almost disappeared!
Green tea extract appears to be exclusively produced in China, where exists a pervasive problem with lead in just about everything. Responsible supplement resellers test for lead, but how thoroughly? Do they test for even the tiniest trace of lead, rejecting batches that test positive? Would any green tea extract be available if such strict standards were followed?
Speculation that some folks may be genetically more sensitive to trace amounts of lead seems reasonable.
Obligatory disclaimer: I am not a licensed medical practitioner.