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Tier-CPublic-ready7/4/2026

EAA

Glucose and metabolic health markers is closer to a research marker, so it should be read separately from a directly felt benefit.

The 56.5 score includes research signals from patient or disease contexts. General supplement evidence is not repeated enough, so the C tier remains conservative.

Representative tier calculated from paper evidence that passed the collection audit.

Papers analyzed
61
Caution signal
Low
Context-specific research signal
56.5
Glucose and metabolic health markersExercise performance and recoveryImmune and respiratory support

Main benefit evidence

The representative ingredient tier is calculated from these target-level evidence groups.

Glucose and metabolic health
5 studiesTier-B
Glucose and metabolic health markers
Fairly consistent positive signal in studiesResearch marker focusPatient-group study

This card is closer to a measured biomarker or lab outcome than a directly felt user benefit. These findings come from a defined study population, so everyday effects may differ.

Evidence score
56.7
Study context
Patient-group study

This score reflects the strength of this benefit group. The ingredient tier also considers paper count, repetition, population, and study context.

Exercise performance and recovery
4 studiesTier-B
Exercise performance and recovery
Fairly consistent positive signal in studiesFelt benefit focusPatient-group study

Potential benefit studied in Exercise performance and recovery. These findings come from a defined study population, so everyday effects may differ.

Evidence score
54.6
Study context
Patient-group study

This score reflects the strength of this benefit group. The ingredient tier also considers paper count, repetition, population, and study context.

Immune and respiratory health
1 studiesTier-C
Immune and respiratory support
Some positive signal observedFelt benefit focusPatient-group study

Potential benefit studied in Immune and respiratory health. These findings come from a defined study population, so everyday effects may differ.

Evidence score
42.1
Study context
Patient-group study

This score reflects the strength of this benefit group. The ingredient tier also considers paper count, repetition, population, and study context.

Bone and joint health
1 studiesTier-C
Bone, joint, and mobility
Some positive signal observedFelt benefit focusPatient-group study

Potential benefit studied in Bone and joint health. These findings come from a defined study population, so everyday effects may differ.

Evidence score
42.1
Study context
Patient-group study

This score reflects the strength of this benefit group. The ingredient tier also considers paper count, repetition, population, and study context.

Recent research

Updated This Month10 new papers

Observed range in repeated studies

This range includes studies in specific patient groups. It is not a general dose or recommendation.

Lower observed study value
3.6
g/day
Higher observed study value
20.31
g/day
Only ranges repeated in human, oral, single-ingredient studies are shown.
Not personal dosing instructions, recommendations, or safety limits.

Side effects and combination findings in studies

Findings from studies of this ingredient alone are separated from findings involving another supplement or medication.

Caution index
0.8
Caution band: Low
Caution signals
0
Side effects + combos + curated rules
Key precautions
No combination caution signal is clear enough to show right now. This does not guarantee safety.
These are signals reported in studies. They do not predict what will happen to an individual.

Side effects and combination studies

No standalone side-effect or combination signal is currently clear enough to show from the collected papers. This does not mean there is no concern.

Evidence summaries

Paper IDs and full lists are private. Only study types and summaries are shown.

Key Evidence #1
Public scholarly dataCitation signal: 870
rct

[Abstract]: Nutritional supplementation may be used to treat muscle loss with aging (sarcopenia). However, if physical activity does not increase, the elderly tend to compensate for the increased energy delivered by the supplements with reduced food intake, wh

Key Evidence #2
Public scholarly dataCitation signal: 484
review

[Abstract]: Whey proteins and amino acid supplements have a strong position in the sports nutrition market based on the purported quality of proteins and amino acids they provide. Recent studies employing stable isotope methodology demonstrate the ability of w

Key Evidence #3
Public scholarly dataCitation signal: 468
observational

[Abstract]: This study tests the hypothesis that a dose of 6 g of orally administered essential amino acids (EAAs) stimulates net muscle protein balance in healthy volunteers when consumed 1 and 2 h after resistance exercise. Subjects received a primed constan

3 more summariesLimited representative sample by study type.
>
Public scholarly dataCitation signal: 379
review

[Abstract]: Amino acids are necessary for the survival, growth, development, reproduction and health of all organisms. They were traditionally classified as nutritionally essential or non-essential for mammals, birds and fish based on nitrogen balance or growt

Public scholarly dataCitation signal: 330
observational

[Abstract]: Background Stunting affects about one-quarter of children under five worldwide. The pathogenesis of stunting is poorly understood. Nutritional interventions have had only modest effects in reducing stunting. We hypothesized that insufficiency in es

Public scholarly dataCitation signal: 288
review

[Abstract]: Based on growth or nitrogen balance, amino acids (AA) had traditionally been classified as nutritionally essential (indispensable) or non-essential (dispensable) for animals and humans. Nutritionally essential AA (EAA) are defined as either those A

EAA
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