Evidence

Show me what the research actually says.

BOTH is building a research intelligence library—distinct from product listings, affiliate relationships, and anecdotal testing. Every material claim should trace to classified evidence with known limitations.

Testing methodology Editorial policy Learn

BOTH evidence scale

One canonical classification for topic- and ingredient-level claims. Product listings use separate trust dimensions (testing, verification, commercial status).

Research library

Evidence hub index

BOTH is building a research intelligence library—distinct from product listings and affiliate relationships. Each future hub will follow a consistent structure so claims stay traceable and updateable.

What it is
What people claim
What the research actually shows
BOTH evidence classification
Human vs preclinical evidence
Key primary studies
Limitations / uncertainty
Practical interpretation
Related Learn content
Related comparisons
Relevant products (when appropriate)
Last reviewed / updated

Live & linked topics

Creatine monohydrate
ESTABLISHEDLive topic
Strength, high-intensity performance, and cognition—ingredient-level evidence.
- Creatine: what it does, what the evidence says, and what to buy
Dietary protein & powders
SUPPORTEDLive topic
Muscle protein synthesis, intake adequacy, and format comparisons.
- Protein powders: ingredients, testing, and who each type is for
- Protein intake: how to think about it without overcomplicating it
Magnesium
SUPPORTEDLive topic
Forms, intake, and sleep—mixed population-dependent evidence.
- Magnesium supplements: forms, evidence, and what matters
Sleep fundamentals
SUPPORTEDLive topic
Behavioral levers before devices and supplements.
- Sleep basics that matter before buying another supplement
- Best sleep trackers: what each one actually measures
Recovery interventions
SUPPORTEDLive topic
Sleep, load management, nutrition—before modality stacking.
- Recovery basics before adding more tools
- Recovery tools worth considering, and what the evidence actually supports
Peptides & emerging compounds
EXPERIMENTALLive topic
Evidence uncertainty, regulatory context, and safety boundaries.
- BPC-157: what we know, what we don't, and current regulatory status
- CJC-1295: evidence, uncertainty and current status

Planned hubs

Indexed for architecture—not mass-generated. Each hub requires research brief and claim ledger before publish.

Essential amino acids
Planned
EAA research vs complete protein—distinct from product-specific claims.
Heart rate variability (HRV)
Planned
What wearables measure and what HRV can and cannot tell you.
Compression & percussive recovery
Planned
Modality evidence and practical expectations.
Sauna & heat exposure
Planned
Cardiovascular and recovery claims—population and protocol dependent.
Cold exposure
Planned
Immersion, showers, and recovery—evidence still developing.
Hypertrophy training
Planned
Volume, intensity, and progressive overload—training evidence.
Zone 2 cardio
Planned
Mitochondrial adaptations and practical programming.

Sensitive topics

Educational research framing only. Medical review required before publication.

GLP-1 receptor agonists
Review required
Educational research framing only—not medical or prescribing guidance.
Requires medical review before any hub page.
Testosterone & endocrine health
Review required
Educational research framing—clinician-directed decisions only.
Requires medical review before any hub page.