libido · Outcome
Wake up with one. A vascular and hormonal feedback loop.
How to measure:
Three levers, one stack. Each works through a different mechanism. They compound.
No data yet
100-200mg
Evidence
Effect size
Research
None
Improves urinary & prostate
45-120 min, 3-4x per week
Evidence
Effect size
Research
14 papers
directional · 14 studies · no reliable magnitude
No food pick yet
We only surface a food once enough quality studies back it for this goal. None clear the bar yet. We add new research daily, so this can fill in soon.
Everything we found, ranked by how strongly we recommend it. Tap any to see the studies.
Every pick has two signals. They answer different questions and we never bundle them into one number.
Effect size
How big is the change on morning erections, in the units that matter for this outcome.
Confidence
How sure are we the effect is real for morning erections, given the studies we have.
For every pick, the “papers” number is how many studies we've cataloged that test this entity for morning erections. “Favorable” means the study reported the direction you want.
The tier badge (S, A, B…) on the entity itself is its overall research confidence across all outcomes. It's the same letter wherever you see this entity on the site, not specific to morning erections.
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