Is L-theanine safe for the heart?
Research has linked high blood pressure with a higher risk of several health problems, including heart attack and stroke. L-theanine may help reduce stress, and a reduction in stress and increased relaxation can lower the heart rate. In turn, this may help lower blood pressure. Conclusions. The findings above denote that L-theanine not only reduces anxiety but also attenuates the blood-pressure increase in high-stress-response adults.While L-theanine is often used to alleviate anxiety, it can increase feelings of anxiety in some people. This is extremely rare but is most likely caused by the changes the L-theanine has on how the brain deals with serotonin and GABA.Also, 200 mg of L-theanine was shown to help reduce resting heart rate, pointing to its ability to promote relaxation (16). L-theanine may also help boys diagnosed with attention deficit hyperactivity disorder (ADHD) sleep better.L-theanine protects hearts against ischemia and reperfusion injury. L-theanine abates oxidative stress induced by ischemia and reperfusion injury. L-theanine prevents cardiac mitochondrial dysfunction caused by I/R injury. L-theanine increases the activities and expression of antioxidant enzymes.
Can L-theanine worsen anxiety?
Research shows that L-theanine supplements can elevate your levels of GABA, dopamine and serotonin, which promotes relaxation and reduces anxiety levels. Lowers levels of “excitatory” brain chemicals. At the same time, it is increasing chemicals that promote feelings of calm, L-theanine also reduces levels of chemicals in the brain that are linked to stress and anxiety. This may also be a way that L-theanine can protect brain cells against stress and age-related damage.L-theanine is a compound that may support thinking, sleep, and relaxation and help with weight loss, blood pressure, and more. Research suggests that L-theanine might provide a range of health benefits, which may include improved mental focus and better sleep quality.It is well absorbed from the intestine and can cross the blood brain barrier. Putative biological activities include relaxation and cognitive enhancement. The rationale is that l-theanine increases alpha brain waves in the brain, which is associated with relaxation and selective attention.The short answer is this, though: Ashwagandha works as an adaptogen to support your body’s stress response, whereas L-theanine interacts with brain waves and impacts neurotransmitters to create a sense of calm without causing sedation. If you were going to add just one to your lifestyle, it should be L-theanine.Some sleep medications such as diazepam (Valium), lorazepam (Ativan), and zolpidem (Ambien) may interact with L-theanine and cause more drowsiness. It may also interact with sedatives, stimulants, and medications for high blood pressure. Supplements are not regulated by the FDA in the same way that drugs are.
What cannot be mixed with L-theanine?
Before taking L-theanine supplements, talk with your health care provider, if you regularly take any medications. Some sleep medications such as diazepam (Valium), lorazepam (Ativan), and zolpidem (Ambien) may interact with L-theanine and cause more drowsiness. Therefore, if you’re using L-Theanine to help you sleep, try taking it about 30–60 minutes before bed. You can take L-Theanine either with meals or on an empty stomach. However, if you haven’t recently eaten when taking L-Theanine, you may feel the effects a bit more quickly and intensely.Clinical trials have suggested that L-theanine at 200–400 mg daily dosing for 4–8 weeks as an adjunctive therapy improves anxiety, depressive and psychotic symptoms with minimal side effects (Sakamoto et al.Again, supplements affect everyone differently, but, “common side effects may include headache, nausea and drowsiness” for some people, says Tewksbury. You shouldn’t take L-theanine supplements if: You are pregnant or breastfeeding. You’re allergic to green tea.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 use for longer periods of time. It might cause mild side effects, such as headache or sleepiness.
Can L-theanine give you a headache?
It isn’t clear if L-theanine is safe to use for longer periods of time. It might cause mild side effects, such as headache or sleepiness. Pregnancy and breast-feeding: There isn’t enough reliable information to know if theanine is safe to use when pregnant or breast-feeding. Stay on the safe side and avoid use. A calming effect is usually noted within 30 to 40 minutes after L-theanine is taken at a dose of 50 to 200mg, and typically lasts 8 to 10 hours.Key Takeaways. Magnesium and L-theanine are often recommended for sleep and stress relief, but there isn’t enough data to prove their combination works for everyone. Research shows magnesium may reduce anxiety, stress, and sleep, while L-theanine may aid relaxation but could also increase focus for some people.As a supplement, L-theanine supports mental clarity and focused attention without causing drowsiness. It helps calm your mind from overthinking while keeping you alert and composed, making it a perfect ally for those seeking calm focus without agitation.You may take L-theanine at any time of day. Taking L-theanine in the morning can support a healthy stress response. You might take it at night before bedtime to promote restful sleep.Blood pressure management L-theanine may be beneficial for those who experience increased blood pressure in stressful situations. One study found that people who usually experienced higher blood pressure after specific mental tasks found that L-theanine helped reduce an increase in blood pressure.