Glycine vs L-Theanine
The Bottom Line
Both Glycine and L-Theanine have been researched for 2 conditions in common, backed by 37 and 22 studies. See the head-to-head comparison below.
37
Glycine studies
22
L-Theanine studies
Shared Conditions
| Condition | Glycine | L-Theanine | Winner |
|---|---|---|---|
| Insomnia | A | A | Tie |
| Sleep Onset Difficulty | D | A | L-Theanine |
Unique to L-Theanine
Anxiety-Related Sleep Problems
Can They Be Combined?
Glycine and L-Theanine are generally safe to take together. Consult your healthcare provider for personalized advice.
Individual Profiles
Related Comparisons
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