Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. There is certain information you should give like, how often you masturbate and how quickly you do it? Are you on any other medications? The more often you masturbate the volume of semen will naturally reduce as you are not giving enough time for the semen to be stored after production. Secondly, how involved you are in the act also matters, there are certain medications that can slow down erection and delay ejaculation. Taking your age into consideration the chances of having long-term (chronic) erectile dysfunction is very minimal. There is no specific food or vegetables which can cause significant changes in erection as such. Anxiety and depression can also cause erectile dysfunction (loss of libido). If you could answer the questions in details I will be in a position to help you better, as such I don’t think you need to worry a lot about it at this point in time. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. K M Poornajith