Are they saying that food prices are driving the inflation vs the other factors? Housing is going up fast too isn't it?
https://fred.stlouisfed.org/series/CUUR0000SEHA
I believe those are the two housing sub components of the basket, with owners’ equivalent rent weighted more than the rent one. Eyeballing it they both look under 2%.
Causally, inflation in the US is driven by the Fed's 2% average inflation target.
How those 2% distribute amongst the basket of good is a different question, of course.