They import a lot of items and he was talking about how much spoilage they've had due to products sitting on ships.
As for groceries in general, while shelves might not be empty, there are a ton of brands/products that aren't available. Even at Kroger we end up getting a lot of substitutes.
I've also noticed a lack of products at places like Target. Getting things online has been hit and miss also, but not too bad.