1. Besides Luo Songtang, there are mushroom soup, cream mushroom soup, French onion soup and Hungarian oxtail soup. Luo Songtang is a kind of thick vegetable soup originated in Ukraine. Luo Songtang is mainly made of sugar beet, and potatoes, carrots, spinach, beef pieces and cream are often added for boiling, so it is purplish red.

2. Luo Songtang (Russian: борщ, Polish: Barszcz), also known as red vegetable soup, is a widely spread dish in Eastern Europe, which may appear in Eastern Europe between the 5th century BC and the 9th century BC. There have been many changes in Luo Songtang's raw materials in history, including Radix Saposhnikoviae, Gowasu, Oxalis, Cabbage, etc. Later, it evolved into beet as the main material, and potatoes, carrots, spinach, beef pieces and cream were often added for boiling, so it was purple. In some places, tomatoes are the main ingredients and beets are the auxiliary materials. There are also orange Luo Songtang without beets and tomato sauce and green Luo Songtang.