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ProtocolEngine provides general health information based on published research. This is not medical advice. Consult a healthcare professional before starting any supplement or health protocol.

© 2026 ProtocolEngine

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What do you want
to improve?

Pick an outcome below. You'll get the top supplement, top habit, and top food, with dose, timing, and the actual studies behind every pick.

Outcomes covered
32
Curated reviews
15
Studies indexed
41K+
Claims extracted
224K+

Sleep

Fall asleep faster, stay asleep, sleep more deeply.

Falling Asleep

Get to sleep faster instead of staring at the ceiling.

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Sleep Duration

Get the hours that leave you fully restored.

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Energy

More vigor in the morning. No afternoon crash.

Morning Energy

Wake up actually awake, not foggy and slow.

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Cognitive

Sharper focus, better memory, faster thinking.

Cognitive Clarity

Think clearly instead of working through fog.

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Mood & stress

Steadier emotional baseline. Bounce back from stress faster.

Stress Resilience

How well you handle stress without it knocking you off course.

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Physical

Train harder, recover faster, hold onto muscle as you age.

Blood Pressure Regulation

Bring resting pressure down into the healthy range.

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Bone Density

Strong, dense bones that take a fall without breaking.

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Exercise Capacity

Train harder. Last longer. Push past your previous limit.

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Muscle Mass

Build and keep lean tissue. Hardest thing to claw back as you age.

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Recovery From Exercise

Be ready for the next session sooner.

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Metabolic

Better blood-sugar control, body composition, weight stability.

Body Composition

Lose fat without losing the muscle underneath.

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Immune & inflammation

Fewer sick days. Less low-grade inflammation.

Inflammation Status

Bring chronic inflammation down.

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Digestion

Less bloating, more regularity, better gut comfort.

Gut Comfort

Eat without the bloat, gas, and discomfort.

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Longevity

Push back the date when things start to break down.

VO2 Max

Aerobic fitness. The single strongest mortality predictor.

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Libido

Desire, function, the signals downstream of both.

Libido

Bring desire back to a level you recognize.

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See more outcomes

In progressShow 17 moreHide

These outcomes show the strongest picks we've found in the research so far, but we haven't finished writing the dose, timing, and reasoning for each one yet. Full reviews land as we work through them.

Sleep

Fall asleep faster, stay asleep, sleep more deeply.

Sleep Architecture

Spend more of the night in deep and REM.

Preview

Staying Asleep

Stop waking up at night for no reason.

Preview

Energy

More vigor in the morning. No afternoon crash.

Afternoon Energy Dip

Skip the afternoon crash that ruins the rest of the day.

Preview

Cognitive

Sharper focus, better memory, faster thinking.

Reaction Time

Respond faster in the moments that matter.

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Working Memory

Hold more in your head without losing the thread.

Preview

Mood & stress

Steadier emotional baseline. Bounce back from stress faster.

Mood Stability

Even out the swings. Stay closer to baseline.

Preview

Metabolic

Better blood-sugar control, body composition, weight stability.

Metabolic Flexibility

Burn fat between meals. Burn carbs around training.

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Weight Stability

Hold your weight without yo-yoing.

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Immune & inflammation

Fewer sick days. Less low-grade inflammation.

Immune Resilience

Catch fewer colds. Shake them off faster.

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Digestion

Less bloating, more regularity, better gut comfort.

Bowel Regularity

Go daily, without strain or surprise.

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Longevity

Push back the date when things start to break down.

Healthspan

Years of healthy, disease-free life ahead.

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Skin & hair

Clearer skin, denser hair, slower aging signals.

Hair Quality

Denser hair. Less shedding. Stronger strands.

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Skin Quality

Clearer skin. Better hydration. Fewer breakouts.

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Libido

Desire, function, the signals downstream of both.

Morning Erections

Wake up with one. A vascular and hormonal feedback loop.

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Reproductive

Cycle regularity, ovulation, fertility markers.

Cycle Regularity

Bring cycles back into a predictable rhythm.

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Male Fertility Markers

Lift sperm count, motility, and DNA quality.

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Ovulation Quality

Ovulate every cycle with a strong luteal phase.

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