A blood creatinine of 126 μmol/L usually belongs to the blood creatinine increase, dietary precautions, including controlling the intake of protein, salt, water, high potassium food and high purine food. 1. Control protein intake: It is recommended to have a high-quality low-protein diet, such as meat, eggs, milk, etc.; eat less poor-quality protein-rich foods, such as bacon, ice cream, hot dogs, fried chicken and roasted chicken. 2. Control salt intake: If you are a patient with high blood creatinine and hypertension, you need to control your daily salt intake below 5 grams; if your blood pressure is high and not easy to control, you even need to control your daily salt intake not higher than 3 grams. 3. Control the intake of water: if high creatinine is accompanied by obvious swelling symptoms, you need to control the intake of water, less than 1500 milliliters per day. 4. Control the intake of high potassium food: such as bananas and oranges, need to eat less, or do not eat. 5. Limit high purine foods: such as legumes, as well as seafood, it is best not to eat. It is recommended that when the blood creatinine is found to be elevated, timely to the hospital, identify the causes, and follow the doctor’s instructions to actively treat, so as not to delay the condition.