Name: Suntheanine L-Theanine 100 mg
Brand: Natural Factors Stress-Relax
SKU: 1lAYAKNm
Rating: 464.0 (4248 reviews)

Question 1

What is L-Theanine commonly used for?

Accepted Answer

L-Theanine is an amino acid often used to promote relaxation without causing drowsiness. It is also frequently taken to support focus and attention. Some individuals use it to help manage stress and improve mood.

Question 2

Can L-Theanine help reduce stress and anxiety?

Accepted Answer

Research suggests that L-Theanine may help reduce feelings of stress and anxiety in some individuals. It is thought to do this by promoting alpha brain wave activity, which is associated with a relaxed but alert mental state. This effect can contribute to a sense of calm.

Question 3

Does L-Theanine improve sleep quality?

Accepted Answer

L-Theanine does not typically act as a sedative, but it may improve sleep quality by promoting relaxation and reducing anxiety, which can make it easier to fall asleep. By calming the mind, it might allow for a more restful sleep experience. Some studies indicate it can help people fall asleep faster and stay asleep longer.

Question 4

How does L-Theanine affect cognitive function and focus?

Accepted Answer

L-Theanine can enhance cognitive function, particularly when combined with caffeine, by improving alertness and attention. It is believed to support mental clarity and focus without the jitteriness sometimes associated with stimulants alone. It may also help reduce task-induced distractions.

Question 5

What are the benefits of combining L-Theanine with caffeine?

Accepted Answer

Combining L-Theanine with caffeine is often done to enhance cognitive performance and reduce caffeine's potential side effects like jitters and anxiety. L-Theanine can help smooth out the stimulating effects of caffeine, promoting a state of calm focus. This combination is popular for improving alertness and attention.

Question 6

Can L-Theanine support mood?

Accepted Answer

L-Theanine may support a positive mood by influencing neurotransmitters in the brain. It can promote alpha brain waves, which are linked to a relaxed and attentive mental state. This can indirectly contribute to an improved sense of well-being.

Question 7

Are there benefits of L-Theanine for blood pressure management?

Accepted Answer

Some research suggests that L-Theanine might have a mild effect on blood pressure, particularly in individuals experiencing stress. Its relaxation-inducing properties could contribute to a temporary reduction in stress-induced blood pressure spikes. However, it is not a primary treatment for hypertension.

Question 8

Does L-Theanine have antioxidant properties?

Accepted Answer

Emerging research indicates that L-Theanine may possess antioxidant properties. These properties could help protect cells from damage caused by free radicals. More studies are needed to fully understand this aspect of its effectiveness.

Question 9

Can L-Theanine help with symptoms of premenstrual syndrome (PMS)?

Accepted Answer

Preliminary studies suggest that L-Theanine may help alleviate some psychological and physical symptoms associated with premenstrual syndrome. Its calming effects might reduce irritability and stress often experienced during this period. Further research is necessary to confirm these effects.

Question 10

Is L-Theanine beneficial for individuals seeking neuroprotection?

Accepted Answer

Some studies suggest L-Theanine may offer neuroprotective benefits, potentially by reducing neuronal excitotoxicity and oxidative stress. These properties could contribute to maintaining brain health. This area of research is still developing.

Question 11

What is a common dosage for L-Theanine supplements?

Accepted Answer

Common dosages for L-Theanine typically range from 100 mg to 400 mg per day. Some individuals may start with lower doses to assess their response. Dosages can vary based on the desired effect, such as relaxation or focus.

Question 12

If combining L-Theanine with caffeine, what ratio is often suggested for optimal effects?

Accepted Answer

When combining L-Theanine with caffeine for enhanced focus and reduced jitters, a common ratio is 1:1 or 2:1 L-Theanine to caffeine. For example, 100-200 mg of L-Theanine might be paired with 100 mg of caffeine. This combination is designed to balance caffeine's stimulatory effects with L-Theanine's calming properties.

Question 13

When is the best time to take L-Theanine for relaxation or sleep support?

Accepted Answer

For relaxation or sleep support, L-Theanine is often taken 30-60 minutes before a stressful event or before bedtime. It can help promote a state of calm without causing drowsiness. Its effects typically appear within 30 minutes to an hour.

Question 14

Can L-Theanine be taken in the morning for focus and cognitive performance?

Accepted Answer

Yes, L-Theanine is often taken in the morning or throughout the day to support focus and cognitive performance, especially when combined with caffeine. It can help promote a state of calm alertness. This combination is frequently found in green tea.

Question 15

How often can L-Theanine be safely taken?

Accepted Answer

L-Theanine can typically be taken once or twice daily, depending on individual needs and desired effects. Some individuals may choose to take it as needed. It's generally well-tolerated for regular use within recommended dosages.

Question 16

What forms of L-Theanine supplements are commonly available?

Accepted Answer

L-Theanine supplements are commonly available in capsules, tablets, and powders. Some products may also come as chewables or in liquid forms. The choice of form often depends on personal preference and ease of consumption.

Question 17

Is there a maximum recommended daily dose for L-Theanine?

Accepted Answer

While L-Theanine is generally considered safe, studies often use dosages up to 400 mg per day, and sometimes higher in research settings, without significant adverse effects. It is advisable to adhere to the dosage instructions on the supplement label or consult a healthcare professional for personalized advice. Very high doses beyond typical recommendations have not been extensively studied for long-term safety.

Question 18

Should L-Theanine be taken with or without food?

Accepted Answer

L-Theanine can generally be taken with or without food. Some individuals prefer to take it on an empty stomach for faster absorption, while others may take it with a meal to avoid potential mild stomach upset, though this is rare. There is no strict requirement regarding food intake.

Question 19

Is there a difference between 'L-Theanine' and just 'Theanine' on supplement labels?

Accepted Answer

Most commercially available Theanine supplements contain L-Theanine, which is the naturally occurring and biologically active form found in tea. While 'Theanine' might be used broadly, it almost always refers to L-Theanine. Ensure the product specifies 'L-Theanine' for clarity regarding its active form.

Question 20

Are there specific forms of L-Theanine designed for faster absorption?

Accepted Answer

While most L-Theanine is available in standard capsules or powders, some products might offer sublingual forms designed for quicker absorption through the mucous membranes under the tongue. However, the difference in onset time between standard and sublingual forms may not be significant for everyone. The primary factor in onset is often individual metabolism.

Question 21

Can L-Theanine be taken with caffeine?

Accepted Answer

Yes, L-Theanine is often taken with caffeine as they are believed to have complementary effects. L-Theanine may help to reduce some of the jitteriness or anxiety associated with caffeine while maintaining alertness. Many studies investigate this specific combination.

Question 22

What are the common side effects of L-Theanine?

Accepted Answer

L-Theanine is generally well-tolerated. Some individuals might experience mild side effects such as drowsiness, dizziness, or headache, especially at higher doses. These effects are usually temporary and not severe.

Question 23

What is a safe dosage range for L-Theanine?

Accepted Answer

Common dosages in studies range from 100 mg to 400 mg per day, often split into multiple doses. However, individual responses can vary. Always follow product label instructions or consult a healthcare professional for personalized dosage recommendations.

Question 24

Is L-Theanine safe to take with sedatives or anti-anxiety medications?

Accepted Answer

L-Theanine may have a calming effect and could potentially enhance the effects of sedative or anti-anxiety medications. This combination might lead to increased drowsiness or sedation. It is important to discuss this with a healthcare provider before combining them.

Question 25

Does L-Theanine interact with blood pressure medications?

Accepted Answer

L-Theanine may potentially lower blood pressure in some individuals. Therefore, caution is advised for those taking medications for high blood pressure, as combining them might lead to an excessive drop in blood pressure. It is advisable to consult a healthcare professional.

Question 26

Are there any known interactions between L-Theanine and stimulant medications?

Accepted Answer

L-Theanine may counteract some of the stimulant effects of certain medications, potentially reducing their efficacy. Conversely, some users combine them to mitigate stimulant-induced jitters without reducing focus. Consultation with a healthcare professional is recommended due to potential opposing effects.

Question 27

Are there any populations who should avoid L-Theanine?

Accepted Answer

Individuals who are pregnant or breastfeeding, those with very low blood pressure, or those taking blood pressure medications, sedatives, or stimulants should exercise caution or avoid L-Theanine. Anyone with underlying health conditions should consult a doctor prior to use.

Question 28

Can L-Theanine be taken long-term?

Accepted Answer

Most studies on L-Theanine focus on short- to medium-term use, typically up to a few months. While it is generally considered safe, long-term safety data beyond this period is limited. Continuous long-term use should ideally be discussed with a healthcare provider.

Question 29

Is L-Theanine safe during pregnancy or breastfeeding?

Accepted Answer

There is insufficient research on the safety of L-Theanine during pregnancy and breastfeeding. Due to the lack of adequate data, it is generally recommended to avoid L-Theanine or consult a healthcare professional before use in these situations.

Question 30

Can L-Theanine interact with other dietary supplements?

Accepted Answer

While L-Theanine is generally safe, it could potentially interact with other supplements that have sedative properties or influence blood pressure. Examples include valerian, kava, or supplements targeting blood pressure regulation. Always review all supplements with a healthcare professional.

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Ingredient	Amount per serving
Calories	15 Calorie(s)
Total Carbohydrates	4 Gram(s)
Suntheanine L-Theanine	200 mg

Suntheanine L-Theanine 100 mg
Natural Factors Stress-Relax

Suntheanine L-Theanine 100 mg

Score 90.0

Analysis

Effectiveness for goals

Dosage, timing & forms

Safety & interactions

Ingredients

Categories

Goals

Recommended Alternatives

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Suntheanine L-Theanine 100 mgNatural Factors Stress-Relax

Suntheanine L-Theanine 100 mg

leaderboard Score 90.0

insightsAnalysiswarningMedical Disclaimer

boltEffectiveness for goals

scheduleDosage, timing & forms

health_and_safetySafety & interactions

Ingredients

Categories

Goals

Recommended Alternatives

L-Theanine 200 mg Double Strength

L-Theanine 200 mg

Double Strength L-Theanine 200 mg

Suntheanine L-Theanine 125 mg

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L-Theanine 200 mg

L-Theanine 200 mg

Double Strength L-Theanine 200 mg

L-Theanine 200 mg Double Strength

L-Theanine 200 mg

Double Strength L-Theanine 200 mg

Suntheanine L-Theanine 125 mg

Theanine

Enhanced Stress Relief

Suntheanine L-Theanine 100 mg
Natural Factors Stress-Relax

Score 90.0

Analysis

Effectiveness for goals

Dosage, timing & forms

Safety & interactions