November 2025

Can L-theanine reduce weight? 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. L-theanine doesn’t directly make you sleepy, but it may help […]

Can L-theanine help you lose weight? 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. The calming effects of L-theanine usually kick in

What happens if you take L-theanine and caffeine? Combining L-theanine with caffeine may reduce some negative effects of caffeine, such as increased blood pressure and sleep disruption, and potentially enhance cognitive functions like attention. As a supplement, L-theanine supports mental clarity and focused attention without causing drowsiness. It helps calm your mind from overthinking while

What does L-theanine do for a woman? However, the cognitive functions for which theanine is effective are unclear. Most users begin to notice the effects of L-Theanine within 30 to 60 minutes of taking it. However, several factors can affect this timeframe: Form of L-Theanine: Capsules, tablets, or powders may differ in absorption rates. Some

Is L-theanine and caffeine good for ADHD? L-theanine, especially combined with caffeine, might be a potential ADHD treatment. Anecdotally, many people with ADHD report improvements in their symptoms when drinking green tea. But it is not certain that L-theanine explains these improvements. Caffeine or another substance could be the reason for the improvement. Research shows

Is coffee and L-theanine good for weight loss? The combination of L-Theanine and caffeine can contribute to reduced fat accumulation primarily by enhancing metabolic rate and promoting fat oxidation. Caffeine increases the body’s ability to break down fat cells for energy, a process known as lipolysis, especially when combined with physical activity. By promoting the

Can I take L-theanine and caffeine together? The combination of coffee and L-theanine is a proven way to enhance alertness while reducing the “jitteriness” some people get from high doses of caffeine. Multiple studies show that together they can boost focus, attention, and reduce distractibility during cognitively demanding tasks. Combining L-theanine with caffeine may reduce

Is theanine safe for pregnancy? In addition, if you’re pregnant or breastfeeding, you should also exercise caution when taking L-theanine, as there’s limited research on its safety in these populations. Another study published in the Journal of Clinical Psychiatry focused on people living with schizophrenia or schizoaffective disorder. Researchers found that L-theanine decreased anxiety and

Can L-theanine help with caffeine anxiety? L-theanine is an amino acid found in tea leaves. It promotes relaxation and may reduce stress by modulating neurotransmitter activity. When taken with caffeine, it may help balance caffeine’s stimulatory effects, promoting a state of calm and alertness. L-Theanine for Kids: a Naturally Calming Supplement L-theanine may be a

How effective is L-theanine for anxiety? Reduced anxiety: A review of nine published articles showed that taking 200 to 400 mg of L-theanine a day can help reduce anxiety in people exposed to stressful environments. Improved focus: A small clinical trial of people between 50 and 70 showed that L-theanine supplements improved attention. L-theanine is