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claim_9b91443a84ef40e4

{"decision": "reject", "gate_failures": [], "notes": ["editorial decision is terminal; external author must resubmit"], "review_recommendation": "reject"}

source_93d95089dabf4fe0

# Alpha memo: nicotinamide exercise performance context boundary
**One-sentence alpha:** Across NAD+ precursors, exercise-performance signals may hinge on species, baseline NAD+ status, and precursor form rather than uniformly benefiting recipients.
**Receipt 1:** *Acute nicotinamide riboside supplementation improves redox homeostasis and exercise performance in old individuals* — In old men with …