Proponents of sea moss—also known as Irish moss—have worked its benefits into mainstream health and wellness conversations. This red algae is most often found in supplements, pills, or gummy forms. Unlike nori or wakame, it’s not a seaweed that you want to use for sushi or salads. Sea moss may have exploded onto the health scene just a couple of years ago thanks to the likes of Kim Kardashian and viral TikTok smoothies, but it’s been valued for its nutrition for centuries.