If you have a jittery moment, a cuppa chamomile tea might help calm you down. Some compounds in chamomile (Matricaria recutita) bind to the same brain receptors as drugs like Valium.
You can also take it as a supplement, typically standardized to contain 1.2% apigenin (an active ingredient), along with dried chamomile flowers. In one study at the University of Pennsylvania Medical Center, in Philadelphia, patients with generalized anxiety disorder (GAD) who took chamomile supplements for eight weeks had a significant decrease in anxiety symptoms compared to patients taking placebo.
L-theanine (or green tea)
They say Japanese Buddhist monks could meditate for hours, both alert and relaxed. One reason may have been an amino acid in their green tea called L-theanine, says Mark Blumenthal, of the American Botanical Council.
Research shows that L-theanine helps curb a rising heart rate and blood pressure, and a few small human studies have found that it reduces anxiety. In one study, anxiety-prone subjects were calmer and more focused during a test if they took 200 milligrams of L-theanine beforehand.
You can get that much L-theanine from green tea, but you’ll have to drink many cups—as few as five, as many as 20.
Yes, it’s in beer, but you won’t get the tranquilizing benefits of the bitter herb hops (Humulus lupulus) from a brew. The sedative compound in hops is a volatile oil, so you get it in extracts and tinctures—and as aromatherapy in hops pillows.
“It’s very bitter, so you don’t see it in tea much, unless combined with chamomile or mint,” says Blumenthal. Hops is often used as a sedative, to promote sleep, often with another herb, valerian. Note: Don’t take sedative herbs if you are taking a prescription tranquilizer or sedative, and let your doctor know any supplements you are taking.