The regulation is that all finishes sold today be non-toxic when CURED. There are lots of toxic warnings about wet finishes but none (that I am aware of) about toxicity when cured and in good condition.
Epoxy for example is quite toxic when wet and the dust is harmful when sanded but left on a table top will be fine for eating. If you have any questions on finishes their MSDS (Material Safety Data Sheet) is available on the web from the manufacturer's site