I had a bit of an unusual diet (for me) yesterday. I exclusively ate bread, nuts, hummus, and various fruits including a few dates at the end of the night. When I woke up this morning I was a bit sweaty and my partner asked me if I was making coffee or like making caramel candies or something. I had no idea what she was talking about and joked, “it’s just my natural musk”. Anyway turns out it was. I legitimately smell like fresh caramels.
Eat more dates?
Specifically I had banana, peanut butter, sourdough, cinnamon, pear, cashew, pistachio, bell pepper, hummus, and cucumber.
We do exude odors from the foods we eat. You may have noticed individuals who smell of garlic or onions. Asian friends have told me people in the U.S. tend to smell like milk/dairy or meat. It seems probable that, yes, your diet gave you a lingering odor.