November 2025

Does L-theanine affect appetite? As higher inclusion of L-theanine may lower blood pressure, appetite loss, difficulty concentrating, dizziness, diarrhea, headaches, nausea, and gastrointestinal discomfort (Haskell et al. Giesbrecht et al. Yoto et al. L-theanine is what’s known as an anxiolytic—it works to reduce anxiety. Some anxiolytics, such as valerian and hops, have sedative effects. L-theanine, […]

What happens if you take L-theanine daily? 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

Will L-theanine help with weight loss? 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. Many holistic health care professionals suggest starting with

How much L-theanine per body weight? How Much L-Theanine Should I Take? As noted above, there are no official dosing recommendations. However, it’s common for studies to use 2. Adults taking L-theanine regularly often consume up to 400 mg per day. L-Theanine’s effects on stress and cortisol levels Cortisol contributes to increased blood pressure, inflammation,

Does L-theanine help you lose weight? The combination of L-Theanine with caffeine and catechins, as found in green tea, appears to be a powerful trio for weight management. The synergistic effects of these compounds may enhance fat loss and boost energy levels, making them a valuable addition to a healthy diet and exercise regimen. These

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