Tasteless eating may be caused by tongue inflammation, excessive denture, salivary gland diseases, indigestion, psychological factors, nutritional deficiencies, etc. It is recommended to go to the hospital for specific examination and treatment. 1. Inflammation of the tongue papillae, candida infection, etc. can cause taste buds to be affected and tasteless eating. 2. Too many dentures in the mouth with different chewing texture may result in chewing without flavor. 3. Tumors or inflammation of salivary glands can lead to insufficient salivary secretion and may cause taste bud atrophy. 4. Abnormalities in the digestive system, insufficient digestive enzymes in the mouth, the sense of taste may be impaired. 5. Mental trauma or depression may result in a lack of taste. 6. Nutritional deficiencies, such as lack of vitamins and micronutrients, may also lead to abnormal taste.