630 calories. Siu Lama Xiang beef noodles is Lanzhou Siu Lama Xiang Catering Management Co., Ltd. under the chain of beef noodles, the company was founded in 2012, by Mr. Wang Quanrong, chairman of the board of directors of Siu Lama Xiang Catering, is a set of beef noodle chain to join a new type of enterprise. The calories of the beef noodles in a bowl of noodles in 630 calories or so, calories itself is not a nutrient, it is by the body or food in the three major thermogenic nutrients protein, fat and carbohydrates in the body after the breakdown of metabolism released.