As far as food goes; I can't speak for every store. However, mine is not
empty. When I was working today there was actually quite a bit there. It was specific spots that were left bare. Namely the canned vegetables, soup, pasta, rice, and so on. And of course toilet paper. But if someone needed some food for the week, they could absolutely come in and find something. The main issue, and why are grocery delivery was cancelled, was because all stores ran out of the items mentioned above, and have a full stock of the items people didn't buy in bulk. So they don't have anything to give us that we need to restock the empty parts of the shelf, and we don't want anymore of the items people didn't want to buy.
Just to list some of the things I saw plenty of on the shelves/back stock:
Health cereals (think Kashi).
Specific types of soup; for some inexplicable reason most cream based soups were left alone, while broth based just flew off of the shelf.
The less desirable, but still edible, canned vegetables like beets. Also a lot of canned fruit.
The entire baking aisle, except for cake and cookie mixes which were decimated.
Coffee and tea, of all kinds. Although oddly we did run out of creamer.
Kids snack gummies.
Chips and pretzels, except for Lay's and Doritos.
Anything gluten free.
Most of the dairy section, which did get the scheduled delivery (dairy is a separate delivery from grocery).
Again, this is just my store. I don't know what's happening at others. But I don't think anyone is at risk of not being able to get food if need be. Just be more open to eating beets.
You don't have to tell your friend that though.