Heineken 0.0 is one of the few non-alcoholic beers that is truly non-alcoholic. That’s why it’s called 0.0, because it has 0.0% ABV.
Now most other non-alcoholic beers, that’s not so much the case. Most have 0.05% or less, basically the same amount you’d ingest from eating a ripe banana or putting too much soy sauce on your sushi