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What is creatinine?

Creatinine is one waste product that is generated from muscle metabolism and produced from creatine. Generally, about 2% of body’s creatine is converted into creatinine every day, and our kidneys are responsible for filtering out most of the creatinine and removing it from the body via urine. Therefore, creatinine is most commonly used to assess kidney function.

What are the normal creatinine levels?

Healthy kidneys can keep the level of blood creatinine stable, but age, gender and some other factors may affect the normal creatinine level, which are commonly as follow:

● 0.6-1.2 mg/dl for adult males

● 0.5-1.1mg/dl for adult females

● About 0.2 or more for infants

● 1.8 or 1.9 mg/dl for a person with only one kidney

If the blood test shows one person has high creatinine level, it may indicate some underlying conditions.

What causes high creatinine level?

Even though high creatinine level is an indicator of kidney disease, some other factors can also be the reasons of elevated creatinine level:

● Dehydration: Along with fever, sweating and lack of water, dehydration can lead to the decline of blood flow through kidney, so as to raise creatinine level.

● Tiredness: Overwork or doing strenuous exercise may make people feel tired and then high creatinine level occurs.

● Blood urine or proteinuria: Suffering from hematuria and proteinuria in long time, people may also have elevated creatinine level without any expectation.

● Some drugs: If kidney disease patients take drugs that are harmful to kidneys, the occurrence of high creatinine level may be irreversible.

● Infections: For people with renal insufficiency, any infection such as cold and urinary tract infections may be the reasons of this problem.

● Kidney disease: High creatinine level is commonly used to reveal the severity of kidney damage.

High creatinine level and stages of kidney disease

To rule out unhealthy diet and lifestyles, kidney disease is the main cause of high creatinine level.

Generally, serum creatinine won’t be higher than the normal until 50% of kidney function is lost. Different values of serum creatinine can reveal various stages of kidney diseases.

Stage 1 kidney disease: Creatinine level is less than 1.5mg/dl;

Stage 2 kidney disease: Creatinine level ranges between 1.5 and 2.0 mg/dl;

Stage 3 kidney disease: Creatinine level ranges between 2.1 and 5.0 mg/dl;

Stage 4 kidney disease: Creatinine level ranges between 5.1 and 7.9 mg/dl;

Stage 5 kidney disease: Creatinine level is above 8.0mg/dl.

How to lower high creatinine level in blood?

If creatinine level is lower than 8.0mg/dl, diet modifications and some medicines usually can help control it, but patients may have to consider dialysis once the above two methods can’t be helpful. Besides, immunotherapy is an effective treatment, because it can not only help remove waste products like creatinine from the body but also repair the damaged kidney cells. As a result, patients may avoid dialysis. (If you are interested about this treatment, you can leave a message to us.)

A healthy diet help reduce high creatinine level

What you eat always affects your condition largely, as well as your creatinine level. Learn to make a healthy diet pain, so you can find some difference.

● Drink plenty of water if you still can urinate normally

● Reduce the intake of sodium

● Avoid protein-rich food and dairy products

● Eat more vegetables and fruits

● Prevent creatine supplements and vanadium

The above is the basic requirements of a healthy diet for people with high creatinine level. A detailed diet plan should be made according to your condition. Describe your illness condition and send it to, so we can help you make a good diet plan.