Well, I'm constantly breathing in air, which is full of chemicals.
Primarily I'm actually consuming Oxygen from the air.
I also swallow my own saliva which is full of a myriad of chemicals, chief among them being H2O.
As far as food/drink goes, I've had no food today.
I've only had water (from a tap so it likely contains trace amounts of chemicals like Iron and calcium).
And I've taken two tablets of Ibuprofen. They're sugar coated, so they contain sucrose as well.