L-Theanine vs Pea Protein
Nootropic vs Protein · evidence-backed comparison
- • Pea Protein has the broader effect profile across the 9 effect categories.
- • L-Theanine is cheaper per serving ($0.12 vs $0.80).
- • L-Theanine has higher bioavailability (better absorption).
Side-by-side traits
| Trait | L-Theanine | Pea Protein |
|---|---|---|
Category | Nootropic | Protein |
Active compound | L-theanine | Pisum sativum protein isolate |
Form available | Capsule, Powder | Powder |
Source | plant | plant |
Typical dose | 100–400 mg | 25–40 g per serving |
Dose range | 100–400 mg | 25–40 g |
Loading protocol | — | — |
Best taken with | caffeine (1:2 ratio) | water or plant milk |
Best time of day | any | post-workout |
Bioavailability How efficiently the body absorbs and utilizes the compound. | Very High (5/5) | High (4/5) |
Onset time | Acute: 30–60 min | Acute: 60–90 min |
Half-life | ~3 hours | — |
Evidence level Quality and quantity of human research. | Moderate (some RCTs) | Moderate (some RCTs) |
Overall effect Subjective effect magnitude. | Moderate (3/5) | Moderate (3/5) |
Muscle / strength | Very Low (1/5) | High (4/5) |
Physical energy | Low (2/5) | Moderate (3/5) |
Focus / cognition | High (4/5) | Low (2/5) |
Mood / stress | High (4/5) | Low (2/5) |
Sleep quality | Moderate (3/5) | Very Low (1/5) |
Immunity | Low (2/5) | Low (2/5) |
Recovery Post-exercise recovery support. | Very Low (1/5) | High (4/5) |
Longevity / healthspan | Low (2/5) | Moderate (3/5) |
Safety rating 5 = exceptionally well-tolerated; 1 = significant risk profile. | Very High (5/5) | Very High (5/5) |
Price per serving Approximate USD per typical daily dose. | $0.12 | $0.80 |
Vegan friendly | Yes | Yes |
Gluten free | Yes | Yes |
3rd-party tested | Yes | Yes |
About L-Theanine
Green tea amino that produces calm focus by raising alpha brain waves. Pairs perfectly with caffeine to take the edge off without sedation.
About Pea Protein
The best vegan protein for muscle building — high in BCAAs and lysine, well-absorbed, and clinically equivalent to whey for hypertrophy.
Vetted brands, third-party testing, ships worldwide.
Vetted brands, third-party testing, ships worldwide.
L-Theanine safety
Common side effects:
- • Generally none
Avoid if:
- • Low blood pressure
Drug interactions:
- • Blood pressure meds
Pea Protein safety
Common side effects:
- • Mild GI upset (rare)
Avoid if:
- • Pea allergy
Common uses
- • Calm focus
- • Anxiety reduction
- • Better sleep onset
Stacks well with: Caffeine
Common uses
- • Vegan muscle gain
- • Dairy-free recovery
- • Hypoallergenic protein
Stacks well with: Creatine Monohydrate, Brown Rice Protein
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Medical disclaimer
SupplementDuel is for educational purposes only and is not medical advice. Consult a physician before starting, stopping, or combining supplements — especially if you are pregnant, breastfeeding, take prescription medication, or have a chronic condition.