L-cysteine is naturally found in foods, but because it's made in the body it doesn't need to be consumed in the diet. L-cysteine has antioxidant effects and is used to make up antioxidants such as glutathione.
People use L-cysteine for cancer, diabetes, hangover, stroke, and many other conditions, but there is no good scientific evidence to support these uses.
Don't confuse L-cysteine with N-Acetyl Cysteine (NAC). These are not the same.
Uses & Effectiveness
We currently have no information for L-CYSTEINE overview.
Special Precautions and Warnings
Pregnancy and breast-feeding: L-cysteine is commonly consumed in foods. But there isn't enough reliable information to know if L-cysteine is safe to use in larger amounts as medicine while pregnant or breast-feeding. Stay on the safe side and avoid use.
Surgery: L-cysteine might interfere with blood sugar control during surgery. Stop taking L-cysteine at least 2 weeks before a scheduled surgery.
Medications for diabetes (Antidiabetes drugs) interacts with L-CYSTEINE
L-cysteine might lower blood sugar levels. Taking L-cysteine along with diabetes medications might cause blood sugar to drop too low. Monitor your blood sugar closely.
Be cautious with this combination
CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.
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© Therapeutic Research Faculty 2020.