I can attest, first-hand, to the benefits of fruit -- especially pineapple.
I know someone mentioned coffee as something to stay away from with regards to the taste of cum; I'd add alcohol to that list. As much as I love the occasional beer, it doesn't help cum taste.
Oh, that could explain a lot as I love coffee and my partner dislikes me cumming in her mouth ! Hmm, coffee or great tasting cum? Sorry, coffee wins lol.
I used to eat a lot of processed meats and very little for fruit and vegetables, my cum tasted rather bitter I found. Now I eat a lot of fruit and vegetables, very little processed food, my cum tastes so much better. I do drink coffee and alcohol, that doesn't seem to affect the taste.
Smoking cigarettes can affect the taste also
Lots of water and lots of fruit help make it sweeter which usually leads to the girl enjoying it more
Hydration is the key. Stay away from asparagus (yuck). Lots of water makes sweeter fun, dehydration makes salty, bitter cum