This page speaks to athletes, longevity practitioners, and anyone using DDW as part of a structured protocol. It is not medical advice.
Why athletes ask about DDW
Training stress is, in part, mitochondrial stress. Recovery is, in part, mitochondrial recovery. Athletes who track readiness, HRV, and sleep depth are looking for any input that reduces mitochondrial drag without breaking the rules of their sport. DDW fits the profile of a curious — and legal, and clean — input.
How protocol users typically structure it
Common patterns we see across our customer base:
Foundation phase
4 weeks at 105 ppm, full water replacement. Establishes baseline and gives time for body fluid deuterium ratios to shift downward.
Intensive phase
4–6 weeks at 65 ppm. Often timed to a competition prep block or a longevity reset. Subjective reports cluster around sleep depth and morning HRV.
Maintenance phase
105 ppm or alternating, indefinitely or until the next intensive cycle.
These are not prescriptions. They are patterns, and they vary widely. Track your own metrics.
What to track
Resting heart rate, HRV, subjective recovery score, sleep duration and deep-sleep proportion, training-session RPE relative to power output. We are persistently sceptical of single-data-point claims. Trends over weeks are the only honest unit.
Stacking with other inputs
Neolight customers commonly use DDW alongside resistance training, zone-2 cardio, sauna, time-restricted eating, and standard supplementation (creatine, electrolytes, omega-3, magnesium). DDW does not interfere with any of these. There is no evidence DDW interacts with caffeine or alcohol; common sense applies.
What we don’t recommend
Don’t replace medical advice with DDW. Don’t drop training intensity expecting DDW to compensate. Don’t drink absurd volumes — water is still water and over-hydration is still real.