Helix o: Snails can build up a lot of body mass on very few ingredients. They could be, instead of your your compost bin, you could have snails thriving and eating your compost, and then you could eat your snails. A frenchman in california who asked his, some one in his family, his mother perhaps, to send him snails from france to california, because he wanted to have a supply of snails to eat. And so he made an enclosure for them so he could breed these snails to have them whenever he wanted.