You sound young. Premature ejaculation can be controlled by you learning to relax. Take your time. Making love is not a marathon of first past the post. If you feel like you are getting too close, stop, have a breather.
There is something in watermelon that acts like Viagra and carrots were believed to be an aphrodisiac ( probably their shape).
There are no foods that you can eat for ‘penis health’ and the length of your penis was already decided at conception. You can’t alter it. With regards to premature ejaculation, you need to see your Dr. Drug therapy such as SSRIs can delay ejaculation I believe. Penis’s aren’t my forte, I don’t even know why i answered this question.
Flaxseed oil, Fish oil (anything with Omega 3 fats), mixed nuts, leafy vegetables, some sunlight.
There are no foods to help with premature ejaculation…however, there are various techniques such as the male multiple orgasm and reverse/relaxed kegels that definitely help, if not cure, premature ejaculation