Do you lose pheromone levels as you age and if so what is best daily regimen for overall good health?
Indeed they do - Broadly, Androstenone decreases most obviously but Androsterone less-so - Often it becomes the primary in more mature guys. Nols can increase greatly, esp with poor diet and alcohol overconsumption.
There are various takes on how you should tackle this and you can go to very great lengths to try and preserve your output but IME a good quality balanced diet with a reasonable mount of regular activity/excercise will go a long way to keep things in check.
However I despite being reasonably fit and healthy, I have noticed a marked increase in my own Androstenone doses over the last 5/6 years. Most obviously when a period of illness limited my activity but even though I am getting fit again, my own production isn’t as high as it was before and I’m still needing higher doses than I did before.