Bean noodles are one of the popular dishes people enjoy, but they should not be consumed in excess. During the processing and production of bean noodles, about 0.5% alum is added to the slurry. As the noodles form and dry, the alum content increases accordingly. Alum contains a significant amount of aluminum, making bean noodles an aluminum-rich food. Excessive intake of aluminum is harmful to human health.
The World Health Organization officially classified aluminum as a food contaminant as early as 1989 and called for strict control. According to scientific tests, the allowable daily intake of aluminum for a person is 1 milligram per kilogram of body weight. Furthermore, it has been determined that we ingest about 4-5 milligrams of aluminum daily from aluminum cookware such as aluminum pots and spoons, and approximately 12 milligrams from food. If one frequently eats bean noodles, which are high in aluminum, the total aluminum intake can exceed the recommended limit. Scientific research has proven that excessive intake of aluminum can cause significant damage to the functions of the brain, heart, liver, kidneys, nervous system, and the immune system. Recent studies have shown that excessive aluminum intake is one of the primary causes of Alzheimer's disease. Therefore, while bean noodles are delicious, they should not be eaten often or in large quantities.