Noodles are acidic food,

Because of the large amount of sulfur, phosphorus and chlorine in the noodles, they will produce acid after being absorbed and metabolized by the human body, so they are acidic food. The acidity or alkalinity of food has nothing to do with its own PH value, but rather depends on the food in the human body after digestion, absorption, metabolism, the acidity or alkalinity of the human body in order to determine the substance, such as animal white matter, grains and other viscera, muscle, fat, eggs.

Because it contains a lot of sulfur, phosphorus, and chlorine elements, it produces sulfuric acid, hydrochloric acid, phosphoric acid, and lactic acid after metabolized by the human body, which provides the body with internal acidic substances. So even though the noodles contain alkali inside, they still form acids after being metabolized.

Origin of noodles

Noodles originated in China and have been eaten for more than 4,000 years. Noodles are an easy-to-make, easy-to-eat, nutritious, healthy food that can be used as a staple food or a fast food, and have long been accepted and loved by people all over the world.

Noodles are a kind of grain or bean flour with water ground into dough, then pressed or rolled or stretched into a slice and then cut or pressed, and then or the use of rubbing, pulling, kneading and other means, made into strips (or narrow or wide, or flat or round) or a small slice, and finally boiled, stir-fry, braised, deep-fried and made into a kind of food. There are many patterns and varieties. Local specialties are extremely rich, as well as the longevity noodles eaten in celebration of birthdays and the fragrant spaghetti from abroad. Good noodles are almost always mild and al dente, developing the flavor of pasta to its fullest extent.

Refer to Baidu Encyclopedia - Noodles