Safe. Beef tendon noodles are safe, but it is recommended not to eat too much, because it contains a lot of dietary fiber, which is easy to cause diarrhea and abdominal discomfort. In addition, because beef tendon noodles contain high-temperature oil processed at high temperature, this kind of food is not suitable for people with chronic diseases such as peptic ulcer to eat beef tendon noodles safely, but it is recommended not to eat too much because it contains a lot of dietary fiber, which is easy to cause diarrhea and abdominal discomfort.