I’m more referring to when a random person experiences a random craving for something they’ve had before.
Does that generally point to something you’ve had before that unknowingly satisfied a deficiency and which your body tacitly took note of?
I notice it sometimes, like
Beef = i “need” a burger (I’m a skinny dude, beef is not a common staple for me)
Fruit: i need juice or actual berries in yogurt for a smoothie or parfait
There’s a connection between the bacteria living in your digestive tract and your brain. The specifics of this are not fully understood yet. Your gut bacteria do a substantial amount of digestion for you, breaking down the food you eat into molecules that your intestines can absorb. The bacteria live in your intestine because they also consume some of the food that you eat. The research suggests that the bacteria can send signals to your brain that influence what you choose to eat - so that you eat things that they also eat.
Your cravings might not actually be ‘yours’, in a sense.