L-Theanine: What It Is and 3 Benefits - Cleveland Clinic Health …
网页2023年7月19日 · Side effects and risks. L-theanine is generally considered safe and well-tolerated when taken at appropriate doses. In general, it’s recommended that you don’t exceed 500 milligrams (mg) a day ...
L-Theanine: Dosage, Benefits, and Side Effects - Healthline
网页2021年1月20日 · Generally speaking, it’s safe to drink teas and take supplements that contain L-theanine. But it’s important to note that the Food and Drug Administration (FDA) doesn’t regulate supplement...
L-Theanine: Everything You Need To Know - Verywell Health
网页2024年8月25日 · Anxiety: In adults, 200 to 400 milligrams (mg) of L-theanine daily for up to eight weeks were studied. Cognition: In adults, 100 to 400 mg L-theanine for auditory processing was tested, with 400 mg producing the highest results. In young adults, 97 mg of L-theanine with 40 mg of caffeine helped attention.
Theanine: Uses and Risks - WebMD
网页2024年7月6日 · Side effects. Studies have not found side effects from using theanine supplements. Drinking lots of green tea can cause upset stomach and irritability from the caffeine. It's not clear if...
L-theanine: Benefits, risks, sources, and dosage - Medical News Today
网页2023年10月9日 · Experts consider L-theanine to be generally safe for people to take as a supplement, but more research is necessary to confirm its possible health benefits.
THEANINE - Uses, Side Effects, and More - WebMD
网页Side Effects. When taken by mouth: L-theanine is possibly safe when used short-term. Doses of up to 900 mg daily have been safely used for 8 weeks. It isn't clear if L-theanine is safe to...
L-Theanine: When to Take It, Benefits and Side Effects - Good Housekeeping
网页2024年1月26日 · Are there side effects or risks to taking L-theanine? Again, supplements affect everyone differently, but, “common side effects may include headache, nausea and drowsiness” for some...
4 Benefits of L-Theanine, According to a Dietitian - Health
网页2023年7月12日 · Avoid taking supplements containing D-theanine as it may prevent the absorption of L-theanine in the body. Talk to your healthcare provider before starting a new supplement, especially if...
L-Theanine: What Is It, Benefits, Risks, and Side Effects
网页2021年11月8日 · Diet and Nutrition News & Advice. Vitamin Deficiency. L-Theanine: What Is It, Benefits, Risks, and Side Effects. Published on Nov 8, 2021. 5 min read. By Chris Brown. L-theanine isn’t exactly a household name just yet, but it sure seems like more and more people are asking about it every day. It’s easy to understand why.
What You Need to Know About L-theanine - Psychology Today
网页2017年8月29日 · The following medications and other supplements may interact with L-theanine. Effects may include increasing or decreasing sleepiness and drowsiness, interfering with the effectiveness of...