L-theanine and Brain Fog: What Users Say

• kar...
• Taken for less than 1 month
• September 24, 2019

For Dietary Supplementation "I told my psych that the clonazepam isn't working as well as it used to (and I'm going to be slowly tapering off the drug so I can be free of that prison!), and he recommended I use theanine (200 mg, 2 times per day, as needed). The first time I used it, within 30 minutes I was so relaxed - peaceful, calm, and it was easier to read an article because I wasn't always getting distracted. Taking 200 mg in the morning and then again at night was great, and now that I've started tapering off my clonazepam, I am using theanine to help with slight withdrawal symptoms. I'm praying this is what will finally get me off the benzo! This stuff is fantastic...for me. Just be sure to talk with your doc on how to taper off any benzos before you do it yourself. Going cold turkey can be deadly. The only issue is that it seems to make me a little foggy for a short period of time during the morning. But my work product is much better - especially when taking before drinking coffee."

• Wen...
• Taken for less than 1 month
• February 1, 2020

For Dietary Supplementation "Initially, I really benefited from the calm feelings when I took 200 mg at bedtime. Fell asleep more easily and had relief from falling asleep anxiety. After a few weeks, however, I started getting debilitating headaches, fogginess, dizziness, and fatigue. It confined me to home. I am very disappointed."

• Bal...
• Taken for 6 months to 1 year
• May 8, 2018

For Dietary Supplementation "I've lived with anxiety my whole life, and in my 50s now, post-menopausal, trying to reduce my tension and mood swings. Pharma made me too sleepy and had side effects, so I gave up on those in my late 30s. L-theanine was recommended by a pharmacist, and I've taken 100-200 mg a day in the morning, and it has worked wonders with my anxiety. It allows me to be calm enough to make cognitive changes and choices before I overreact. It has also helped with my foggy thinking, allowing me to focus. I noticed it in my dog's 'calming chews,' interestingly enough. I have also started giving it to an anxious teenager, and it helps with focus. Taken only in the morning, it may avoid the sleep issues that some have, but I've found that another 100 mg might be needed in the afternoon. I've had no sleep problems with it, but that could be because I usually only take it in the morning."

• RJA...
• Taken for less than 1 month
• October 26, 2021

For Dietary Supplementation "I discovered L-theanine by accident through drinking green tea, which I noticed had a hugely positive effect on my mental state - feeling relaxed, calm, as well as alert with mental clarity. This led me to buy L-theanine supplements, and unfortunately, dosages from 40 mg to 400 mg each caused me physical and mental discomfort - headache, nausea, anxiety, and lack of focus. I wondered if I am sensitive to the L-theanine and should try out micro dosages."

• Dav...
• Taken for less than 1 month
• September 8, 2021

For Dietary Supplementation "I'm surprised I haven't heard of L-Theanine before now. With an anxiety disorder and insomnia, I worry a lot and, as a result, don't sleep well, if at all. I've been taking 200 mg at bedtime (only), and it definitely helps to slow 'the wheels,' but it doesn't do much for sleep. So I add a Benadryl 25 mg, and that does the trick. Since I don't like taking the Benadryl every night, I ordered a bottle of Passion Flower to see if that will help. I've been on this routine for about 2 weeks. I should add that, even though I'm not bothered much by anxiety lately - except for later in the afternoon - I do have a kind of fogginess in my head all day... like having a wad of cotton in my skull instead of a brain. Maybe it's the Benadryl."