Show me that science you vegan filth.
You sound angry. You might be less angry if you got more blowjobs, and you might get more blowjobs if you tasted better.
As you might have guessed, semen taste isn't something that gets past the ethics boards of most reputable universities so the info isn't that rigorous, but there is no shortage of anecdotal evidence
https://www.askmen.com/dating/dzimmer_100/130_love_answers.html
The closest medical study is on sperm quality, and it happens to back up exactly the same data. Meat and cheese will make you taste bad and your sperm quality poor. Vegetables and fruits will do the opposite.
https://www.ncbi.nlm.nih.gov/pubmed/18314116
Eat cleaner, you may be happier for it