>zinc
yes, just yes
>lecethin
eat your egges
no idea about others
>water
makes it watery, not the best trade off, but you should drink lots anyway
>kegels
easy to do, takes less than a minute, doesn't require any attention so you can just do it while shitposting, absolutely do this
>edging
depends on your hydration, since playing with yourself takes a fair ammount of effort(i guess guys with bigger dicks have it even harder), might do good, might do bad, not really a universal cumbuckets thing but final orgasm will be good
>buttplay
makes it thicker for me, don't think there is any volume increase, but you can just milk yourself if you don't go for orgasm right away, multiple orgasm is kind of a myth
>pineapple
also makes it bit wierd color
never ate celery in my life