Symptoms, conditions and causes

Why do I have high creatinine in blood?

Creatinine is a waste product of creatine in your body. Creatine is a protein compound that supports your muscle and brain metabolism. Normally, your body gets rid of creatinine through your urine. However, if it’s backing up in your blood, there could be different causes.


  • Nausea

  • Chest pain

  • Muscle cramps

  • Vomiting

  • Fatigue

  • Changes in urination frequency and appearance

  • High blood pressure

  • Swelling or fluid retention

  • Itchiness

Cause #1: Too much protein in your diet

If you consume too much protein in your diet, and/or consume a lot of cooked meat, this can cause high levels creatinine in the blood.


  • Consume lower amounts of protein

  • Consume less cooked meat

Cause #2: Intense exercise

Intense exercise can cause high blood creatinine as well. This is because creatinine will be produced by your muscle as a result of protein metabolism.


  • Lessen the intensity of exercise

  • Rest more between reps and workouts in general

Cause #3: Inflammation/injury

An inflammatory condition, whether from an injury or not, is another reason for high creatinine in your blood. Consuming vitamin D and doing intermittent fasting should help.


  • Consume vitamin D

  • Do an intermittent fasting plan

  • Do the Healthy Keto® diet

  • Consume oils high in omega-3 fatty acids

  • Avoid oils high in omega-6 fatty acids

Cause #4: Consuming creatine supplement

Many people use creatine supplements to support their workouts and energy levels. If you consume too much creatine, it can cause high creatinine levels in your blood.


• Reduce the amount of creatinine in your diet.

Cause #5: Kidney problems

If you have kidney damage, this could create high creatinine levels in the blood. If that’s the case, the solution would be to support your kidneys.


• Support your kidneys

Cause #6: Gallbladder/liver problems

The gallbladder is very important for your digestive system. If none of the above causes relate to your condition, it could come from the gallbladder.


  • Get your gallbladder and liver checked

  • Consume purified bile salts

Other causes:

  • Consuming ace inhibitors

  • A lot of muscle mass

Last updated: Jun 14, 2023 14:24 PM