Getting Eaten Out

So last night my boyfriend and I were hanging out and I let him go down on me. So when we were done we were cuddling and just talking. And he says to me "you need to stop eating junk" and I said why? He said because I can taste how you eat. Meaning the chocolate and junk I eat affects the taste of my vagina? Is this true? I heard of it. But how true is this? I was not offended by this by any means I told him I'm actually glad you were able to tell me this and be open to me! Because I don't want him to have to go through that, I wanna improve it. So can anyone give me some tips of food that can help the taste? A lot of water? Thank you 😘