But there are particular ones that can influence the way the body metabolized what you ingest.
Grapefruit would be a good example, it is very healthy
and good for you but it has a strong slowing effect (4-6 hours) on the same pathway (3A4) in the liver that many heart medications must use. For some taking those heart medications it can cause their blood pressure to skyrocket or just not work at all until the grapefruit effect wears off.