Doctor's Best L-Theanine Contains Suntheanine, Helps Reduce Stress & Sleep, Non-GMO, Gluten Free, Vegan, 150 mg (DRB-00197), 90 Count

I find it very useful.

I bought my first bottle here in late July. I started with 150mg at bedtime, and found it lowers my morning fasting blood sugar! I did not expect this, but discovered it while I was testing frequently. This may be due to the comments I see on the net that theanine can lower cortisol...which is considered a factor in some "dawn phenomenon" patients with insulin resistance/type II diabetes. I don't know if this is really the explanation, but it certainly lowered my morning fasting glucose readings by 30pts or more! During the course of this bottle which is a 90 ct size, our home has had a major stressor, and grief generator, and I have been very upset during this time. So last night I took 300mg instead of the usual 150mg. I slept more soundly, and awakened with a less "heavy heart"...which is what I call my anxiety grief reaction to the acute/temporary stress here. If I feel the return of this anxiety today, I'll take 150mg in the daytime, and another 300mg at bedtime. I am very pleased with this product for myself. But I do think people may vary in their responses. And I think perhaps a higher dose may work for those that are not satisfied with 150mg a day

127 persons found it helpful

surprisingly helpful

I have tried multiple brands of L-Theanine and have found that Doctor's Best is the only brand that works for me. 5 years ago L-Theanine was recommended to me for anxiety at a GNC, no matter how much I would take of that brand I felt no different and wrote it off as ineffective. The beginning of 2015 I was reading again about the anxiolytic effects of L-Theanine and proceeded to buy Doctor's Best off of amazon. This is the only supplement I have ever finished because of how much it has benefited me. I have panic disorder and I recently went on a road trip and was able to make it through by taking this l-theanine (I have prescribed medication but that makes me much more groggy which I do not care for). When I ran out of the Doctor's Best I went to the local health foods store and they didn't carry this brand so I settled for the chewable Natural Factors suntheanine and had noticed the effects were not as effective as Doctor's Best Suntheanine. I know everyone's body reacts differently but if you do struggle with an anxiety disorder that is negatively impacting your life I really do recommend trying this and seeing if it makes a difference on your state of anxiety

127 persons found it helpful

I feel normal ! Product works great!

I was diagnosed with ADD and add as a child in the 80's, and I have always struggled with my mind racing, patience, and anger. I have tried GABA, and it helped me remember a little bit better, and helped me focus a bit, but this did much more. I can't really describe it , but I feel normal. I don't feel angry, rushed, or enraged over little things anymore. I've been taking this particular brand for over a week now, and I can tell a huge difference in my attitude. I am more focused, calmer, I don't forget where things are, I'm more patient, I don't feel the urge to talk all the time, I'm a better listener, I just feel normal. I am actually enjoying my family, and they are enjoying a whole new me. My only complaint is that I wished I had found this product years ago. My recommendation is that if you have trouble focusing, remembering, feeling irritable and your mind races about irrelevant things all the time, to try this product. It can't hurt, and hopefully it does the same for you. It's done wonders for me, and only hope that my review helps someone else. You shouldn't have to feel like I did for so many years, God bless and good luck

108 persons found it helpful

Pleasantly Surprised!

Over many years I have learned to get along quite well in social situations and in public. Despite my progress I still have felt too much social anxiety. I've used alcohol,a prescription for valium, and many different supplements to lessen my anxiety. Valium has worked quite well for me. I have taken a 5mg tablet at most two or three times a week when I felt that I needed it. The problem with this is it affects my mental clarity. I don't like feeling mentally foggy. In trying to reduce my dependence on valium and lessen my anxiety I tried St. John's wort, Kava root, Passion flower and several other natural remedies. None of these worked well for me. Last fall I began taking 150mg of L-Theanine every morning at breakfast. At first I didn't feel a difference but after a few weeks I noticed that I was more confident in social situations, I was more patient with my business clients and employees, and I felt an increase in mental clarity that was a pleasant surprise. Although the effect of this product is very subtle over a period of six months it has helped me feel calmer, more lucid, and even more energetic. I highly recommend it! Doctor's Best Suntheanine L-Theanine (150mg) Vegetable Capsules, 90-Coun

101 persons found it helpful

Be careful taking this if you suffer panic attacks

I have generalized anxiety and panic disorder and have tried literally everything. I have been taking Doctor's Best magnesium which has greatly helped. I recently have been reading a book that recommended l-theanine for anxiety. I took one capsule before bed, felt a little calm and relaxed after 30 min. Fell asleep. 1.5 hours later woke up to one of the worst panic attacks ever. Felt like I couldn't breathe, jittery, racing heart. Took two hours to snap out of it. Had to cancel all of my appointments for the following day and spent the whole day recovering from a horrible night. Might work for some, but be careful. Maybe 150 mg is too powerful. I threw mine away

99 persons found it helpful

Helps curb side effects of stimulants perfectly for me. Taking on an empty stomach makes all the difference.

For me this really took away any side effects of Adderall that I was was experiencing. I don't even care if it's placebo, not that I think it is. But it works for me so I'm going to keep with it. On days where I don't take Adderall it works great with caffeine as well. It helps me keep the benefits of caffeine without the side effects. When I started on Adderall for ADD I felt like it was not doing what it was supposed to do and instead just making me anxious and on edge. Combine with this supplement (which my doctor recommended I take) I feel like the Adderall is finally doing what it is supposed to do for my ADD and I feel some normalcy coming back into my life. For me though it does make a BIG difference if I take this on an empty stomach as it says to do. If I don't follow the directions and take it on an empty stomach then it does not seem to work as well if at all. If anyone is having no noticeable effects I wonder if they are following the directions and taking on an empty stomach. But of course, everyone's body is different so it really might just not work for some. I take it first thing in the morning and wait at least 30 mins before breakfast

96 persons found it helpful

Use sparingly

This definitely works, but I'd recommend taking it on an as-needed basis. When I used it daily for a week or more at a time, I noticed myself becoming increasingly depressed

80 persons found it helpful

BEWARE, FRAUD PRODUCT

I have recently took to buying this product, and it being from a brand I have never heard of before, "Doctor's Best", I had decided to try it out as stupid as that sounds. I took a collection sample of one pill and handed it off to a colleague of mine that is a Forensics lab tech at the University of Denver in Colorado... I was surprised when he got back to me, with the results of the pill three days later... This stuff is literally 100% Rice powder... The tests proved to have absolutely no other ingredient than rice powder... I am a physics major, so honestly I have no idea how his tests came out to, but I did not tell him what the main ingredients were in fear of it being an illegal substance. BEWARE buyer, if you are taking this product, stop; as some people I see posting here have 1-star reviews complaining about sickening effects... This is caused by expired/contaminated rice powder coming from a third world country most likely... I threw the bottle out, without even trying it, because it is literally 100% rice powder (as the "other ingredients" states...) I would take legal action against this company, however, because it is listed as an ingredient, I cannot pursuit such an action. Depending on the state/country Doctor's best is located in, they could potentially be spot free and untouchable because of the fact they listed the ingredient. The only issue is the absence of a listed ingredient, and depending on the state laws, that can be legal in most places. I am too old to even fathom trying to pursue legal action towards these people, and nor do I care because I only wasted such few dollars... I only hope the word can be thrown out there for the most of you trying to buy this crap... Good day to you all, Bo

69 persons found it helpful

Natural alternative to anxiety medication

This is such a great natural alternative to anxiety medication. It takes the edge off of stress caused by everyday living. It helps you to go about your day without a lot of the worries associated with our daily lives. I like taking it along with Calms Forte by Hylands.. Taken together definitely calm you without making you sleepy. I always have these two products on hand. After I stopped taking anxiety meds from the doctor I went through withdrawal and these two products were a God send for the side effects the chemical withdrawals I was going through due to Klonopin and Xanax. I really don't know what I would've done without them. A Naturopath recommended them to help with withdrawal and then to help with any anxiety I may have in the future. Awesome product. Helped me immediately. Here is some more helpful information about Suntheanine. I found Doctors Best to work the best, as I have tried other brands. Mental Alertness Clinical trials suggest that an amount of between 50 to 200 mg of Suntheanine stimulates alpha waves (brain activity), which are identified with a calm but alert mental state. Because Suntheanine is absorbed through the large intestine and transported directly to the brain, it stimulates alpha brain waves, which are "emitted" once we have finished an activity and have stopped to rest. Suntheanine encourages the activity of neurotransmitters, which help regulate attention, learning, mood, memory, body temperature, appetite and sleep. All of these are enhanced by the presence of Suntheanine in our bodies. And the substance also may heighten our mental acuity and support our immune system. Stress Relief Suntheanine is believed to promote stress relief while providing calm and relaxation similar to deep meditation. A completely natural substance, Suntheanine does not produce the undesirable side effects produced by synthetic drugs such as fatigue and drowsiness. Read more: Suntheanine Benefits | eHow.com [...

69 persons found it helpful

Best way to get calm and quick sleep with no side effects.

This is the greatest supplement for those whose minds cannot shut off at night time, making sleep difficult It is NOT a sleep aid per se. it is a calming, relaxing green tea extract that stops the squirrel cage from spinning with worries and to-do lists when trying to sleep. No side affects, no grogginess in the morning. Can also be helpful when flying or in stressful situations as it just calms the butterflies in the stomach a bit

61 persons found it helpful