Looking at this, it looks like food prices are on par with CPI and that energy prices are below CPI.
Is there something more valuable that I could be looking at?
Such as the fact that they substitute the slowest increasing items for the faster increasing items?
Check out the CRB index - that is much more valuable for seeing price increases in food and energy.
That index only deals with the raw ingredients for foods - and doesn’t factor in the fact that some costs (such as labor involved in producing final food products) are not increasing - so it overstates actual bottom line increases at the supermarket - but it does show the increases clearly - unlike the CPI.