Excessive use of L-carnitine will have adverse effects on the circulatory system and digestive system. The common hazards and side effects are as follows:

1, circulatory system: excessive use of L-carnitine and excessive fat supply make the heart overload, which may cause discomfort such as tachycardia, arrhythmia, palpitation and shortness of breath, and even easily induce arrhythmia. In addition, most people who take it are people who lose weight, and may also cooperate with dieting to achieve the effect of losing weight, which may make the heart discomfort more serious;

2, digestive system: L-carnitine promotes the conversion of fat into energy, which will increase the burden on the kidneys and liver. So some users may have gastrointestinal side effects such as indigestion, nausea, vomiting, abdominal pain, diarrhea and even loss of appetite;

3. Others: L-carnitine can make people excited, which may affect the quality of sleep for people with poor sleep quality. Severe abdominal pain, diarrhea and other symptoms may lead to electrolyte disorder and symptoms such as headache, dizziness, fatigue, insomnia and thirst. Some patients may have adverse reactions such as liver function damage, inattention and skin allergy.