What is the difference between creatine and creatinine?

Before discussing the difference between creatine and creatinine, we need to introduce some basic information about them. Creatine is a naturally occurring amino acid derivative in the body with the chemical formula C₄H₉N₃O₂, which helps provide energy to muscle and nerve cells. It was first discovered in skeletal muscle by a French chemist in 1832.

Although creatine can be composed synthetically, it mainly stems from seafood and red meat. This product is taken orally to treat brain disorders, heart disease, and other neurological problems. Topical creatine is used to postpone the aging of the skin.

Creatinine is the metabolite of creatine in the human body, whose chemical formula is C₄H₇N₃O. It is mainly by glomerular filtration out of the body. One milligram of creatinine can be created by every twenty grams of muscle. There are slight changes in the body's muscle metabolism and creatinine production will be relatively stable when the intake of meat food is constant.

Difference between creatine and creatinine on the concept

Creatine, an amino acid, is naturally produced by the kidneys, liver, and pancreas in the body. Creatinine is the metabolite of creatine compounds, which is a biological waste that is generated by muscles.

Difference between creatine and creatinine on the structure

The chemical formula of creatine is C₄H₉N₃O₂ and creatinine has the chemical formula C₄H₇N₃O, which is less than one water molecule than creatine. The structure of creatinine is more complex because it has a heterocyclic structure, while creatine shows a linear molecule. 

Difference between creatine and creatinine on the purpose of the human body

Creatine plays a vital role in the normal function of the human body. It can be obtained from meat products, so it is a natural compound produced by humans itself. This product can provide more energy for muscle, and increase the growth of muscle. In the aspect of treating illnesses, it can help to heal the question about nerve and Parkinson's disease and reduce the incidence rate of diabetes. It is also used as a dietary supplement to improve locomotor performance.

There is no actual value because creatinine can’t provide any energy or nutrition for the human body. However, the levels of creatinine in the blood can be used as an index to decide whether the kidneys are working well. If there is some wrong with the kidneys, the level of creatinine in the blood will increase. In addition, another difference is that creatine increases muscle mass, which is stored in the muscle, while creatinine production decreases muscle mass.

Difference between creatine and creatinine in the sources

Creatine can be composed of three amino acids, including arginine, glycine, and methionine. All of them can be obtained from the human body or taken from food. The difference is that creatinine is the metabolism of meat and muscle tissue in the body.

High levels of creatine and creatinine cause different symptoms

High levels of creatine can result in the aches of stomach, nausea, diarrhea, muscle cramps, and irregular heartbeats. The symptoms of high creatinine are as follows. 

1. Hyponatremia or hypernatremia will occur when the content of creatinine is high, resulting in dysregulation of sodium metabolism in the body.

2. A high level of creatinine is often accompanied by hyperkalemia or hypokalemia, leading to dysregulation of potassium metabolism.

3. When the content of creatinine is too high, it can lead to polyuria, increased nocturnal urination, thirst, mucosal dryness, fatigue, and so on. Besides, it also can cause systemic edema, elevated blood pressure, pulmonary edema, and heart failure.

4. High creatinine in the body can cause bone pain and proximal muscle weakness. Bone pain is often systemic, and bone deformity can lead to short stature and other symptoms.

5. Patients with high creatinine may have symptoms such as deep and long breathing, lack of appetite, abdominal pain and nausea, vomiting, weakness, headache, restlessness, and even coma.

Conclusion: 

At last, it is necessary to conclude the topic of the “difference between creatine and creatinine”. From the above introduction, it is not hard to know that there are many differences between them, such as the structures, the effects on the human body, the sources, and the different symptoms when high levels of creatine and creatinine occur. The relationship between them is that creatinine is a metabolite of creatine, which is useless for the human body. While creatine plays an important role.