Re: sulfur burps...help please!!

Have you had this before? I don't eat dairy, nor anything other than fruits, veggies, nuts, and seeds all raw and organic. I usually get it after trying a new supplement but this time I haven't. I have however started eating a cilantro pesto for heavy metals a few days ago. It has since stopped but I don't think it's from food poisoning. Thanks for your answer though. Anyone else have any ideas?