Blood as food cabidela is also made by cooking chicken or rabbit in its own blood, sometimes diluted with vinegar. In Spain, the "morcilla" sausage is a kind of black pudding mainly made with pig blood, with spices, fat, and sometimes vegetables. In Andalusia "sangre encebollada" and Valencian "sang amb ceba "are popular dishes made with chicken or pork solidified blood and onion. In Sweden, the blood soup svartsoppa, made with goose blood, is traditionally eaten on the eve of Saint Martin, especially in the southern region of Skåne. Other popular dishes, with blood as one of the ingredients include blodpudding (black pudding],
Superfood as "superfoods" are unsupported or disputed by scientific studies. , the marketing of products as superfoods was prohibited in the European Union unless accompanied by a specific authorized health claim supported by credible scientific research. The ruling was a marketing guide issued to manufacturers to assure scientific proof or evidence why a food would be labeled as extra healthy or classified as a superfood. The European Food Information Council stated that it was impractical for people to have a diet based only on superfoods when nutrients are provided readily from a diet based on a diversity of foods, especially a