Cenovit

Cenovis is a dark brown food paste from Switzerland consisting of yeast extract, onions, carrots and spices. Sold internationally under the brand Sonaris, it is similar to English Marmite, Brazilian Cenovit, and Australian Vegemite. It is rich in vitamin B1. It is used to flavour soups, sausages, and salads. The most popular way to consume Cenovis, however, is to spread it on a slice of buttered bread, as stated on the product's packaging . The company does not disclose whether the Swiss Cenovis was a licensed product from the older German one. In contrast to comparable yeast extracts, the Swiss Cenovis, similar to Thomy mustard, was sold in tubes early on and is somewhat lighter and more liquid. Since the beginning of the 20th century many attempts to turn brewer's yeast into food have been made. The main reason being its availability and nutritional physiology. The English Marmite (1902) and the Australian Vegemite (1922) became successful as products. 1912 Casimir Funk discovered an active ingredient against deficiency diseases which he called vitamin. The high thiamine content (vitamin B1) then became the quality of nutritional yeast that was more effective in advertising than its protein content, which had been known for a long time.

Source: Wikipedia