> “Cows eat what’s available,” she says. In California, they eat almond hulls; in Georgia, they eat cottonseeds. Documented evidence attests to farmers in ancient Greece and 18th-century Iceland deliberately grazing their cows on beaches.

> It was, in fact, an ordinary farmer who hit upon the idea of supplementing cows’ feed with seaweed — not for the climate, but simply for his animals’ overall health. On the shores of Prince Edward Island in Canada, Joe Dorgan observed that his beach-paddocked cows got pregnant faster and produced more milk than his inland pastured cows.

From https://e360.yale.edu/features/how-eating-seaweed-can-help-c...