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Sports Research - Double Strength L-Theanine Supplement

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Sports Research

Double Strength L-Theanine Supplement

A grade
90/100
SUPPIE SCORE
85/100
EFFICACY
Low
SAFETY
94/100
CLEANLINESS

What Does Double Strength L-Theanine Supplement Do?

This double-strength 200mg L-Theanine formula offers excellent evidence-based stress relief and focus benefits with optimal dosing. Highly safe for adults, though gelatin may exclude vegans; premium quality enhances value.
What are the primary benefits of L-Theanine for stress reduction?
How does Suntheanine® compare to other forms of L-Theanine in terms of absorption?
Can L-Theanine improve sleep quality without causing drowsiness?
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What Are the Benefits of Double Strength L-Theanine Supplement?

Based on proven scientific research

Stress ReductionStrong
Improved FocusModerate
Better Sleep QualityStrong
Anxiety ReliefModerate

Good For:

What Are the Side Effects of Sports Research Double Strength L-Theanine Supplement?

Always consult your health practitioner if in doubt.

RiskLow Risk

Overview

L-Theanine at 200mg is well within safe daily limits (up to 400mg studied), with no serious side effects reported in healthy adults per NIH and PubMed reviews.
Minimal drug interactions; may enhance effects of stimulants like caffeine but unlikely to interact with common medications (examine.com).
Safe for most adults, including elderly; limited data for pregnancy/breastfeeding—consult physician (Mayo Clinic).
Gelatin-based softgels pose risk for vegetarians/vegans; no major allergens like nuts or gluten present.
High-quality manufacturing by Sports Research with third-party testing reduces contamination risks (FDA-compliant).
Long-term use appears safe based on studies up to 8 weeks; monitor for rare headaches or gastrointestinal upset.

Potential Side Effects

Negative Interactions

Inactive Ingredients

Organic mct oil
Low Risk
Softgel capsule (kosher gelatin, glycerin, purified water)
Low Risk

What Are the Ingredients in Sports Research Double Strength L-Theanine Supplement?

L-Theanine (Suntheanine®)
200mg
Organic MCT Oil
Softgel Capsule (Kosher Gelatin, Glycerin, Purified Water)

Frequently Asked Questions

Common questions about Sports Research Double Strength L-Theanine Supplement