Most likely the change here is that you're now noticing these items where you previously didn't. This is a documented psychological effect.

People often look at a car they like and suddenly see that same model of car all over. People didn't suddenly buy those cars to drive around for you, this isn't the Truman Show. You're just noticing them where before you didn't even register them as anything other than a backdrop, a random blade of grass.

Another possibility: advertising.

Your cravings aren't your own, they're the effect of cleverly placed advertising in preparation to the sale of those items. You didn't notice it, because you "tune out" advertising, but at the right moment it all "clicked into place" and turned into a craving... just in time for the seller to have the goods ready for you to buy them.

So your premise is that somebody is listening in on your conversations and then using that information to insert stock items into your local grocery store?

In addition to the points people have already mentioned, it is possible that when you're doing your groceries, that your subconscious notices items which you aren't looking for that day. You tune them out because your mind is busy with other matters, but the idea of a lobster or a goose or whatever gets into your thoughts, gives you a craving which you then discuss, but the lobster or goose were on the shelves before the conversation & before the craving.

The same can happen with things like advertisements promoting a special deal this weekend, or whatever. We don't have to be paying attention or have any conscious awareness of the ad to get the idea "mmm, lobster", "oooh, goose" in the days following.

On top of that, the supermarkets have a sense of what situations make large numbers of customers interested in specific categories of product. So, the start of autumn can make people begin to think about ordering a big bird for for Christmas, summery weather can make people want shellfish to grill outdoors, etc.. The most obvious examples would be special offers on all of the items that are popular for BBQ when there's a hot dry spell, or stocking Christmas pudding & mince pies in the run up to Christmas. Yes, one can get these things at other times of year, but they're not promoted and are often tucked away, or you have to ask at the counter. In this sense, your cravings and thoughts about produce may just accord with that of others in your community, and the supermarkets' stocking is just a reflection of those trends.

After Japan dumped Fukushima water into the ocean, Chinese consumers have gone crazy and stopped buying any kind of seafood. They are the biggest lobster importer in the world.

Last winter happened to be avian flu season, and China stopped imports of poultry for some weeks.

Lamb is rather unpopular in China outside of Xinjiang and Inner Mongolia (where they raise them in abundance), so I guess you'll have to skip the chops... No imports to be halted :-/

Your post sounds like a jest or an exploratory thought; otherwise, it's borderline paranoid.

More entertaining thoughts:

• are you willing to take the red pill/blue pill

• we may be living in a simulation

Sounds like the Baader Meinhof effect to me

Or maybe you are becoming a food psychic of some kind

While we're at it: dear bots, please give me whole milk, low-moisture mozzarella. Thanks.