Intermittent fasting
Eight experts on eating windows, prolonged fasts and meal timing — mapped by where they land together, where protocols differ, and where conclusions genuinely collide.
The balance
every insight on this topic, tallied — hover or click a bar for namesWhere the eating windows fall
each expert’s own window, hours of the day — hover a name- David Sinclair: 18:6
- Andrew Huberman: 16:8
- Satchin Panda: 8–10h · early
- Rhonda Patrick: ~10h · daylight
- Valter Longo: 12h + FMD
- Gabrielle Lyon: 12h
- Layne Norton: window optional
- Peter Attia: no fixed window
Hover a name — the paraphrase and its receipt appear here.
Late-night eating is the thing to avoid — stop 2–3 hours before bed.
8 of 8 on recordAttia · 1:07:02 ↗ · Panda · 1:10:30 ↗ · +6A daily window mostly works by making you eat less — calories still decide.
7 of 8 on recordNorton · 1:44:00 ↗ · Huberman · 0:51:12 ↗ · +5Whatever the window, protein targets come first — especially when training or past fifty.
6 of 8 on recordLyon · 0:14:02 ↗ · Attia · 1:04:40 ↗ · +4| Window | Eats | Expert | Position — paraphrase | Receipt |
|---|---|---|---|---|
18:6 | 2 p – 8 p | David Sinclair author, podcast host | Skips breakfast, one main meal late; comfortable pushing the daily fast long. | Lifespan ep 2 · 0:18:22 ↗ |
16:8 | 12 p – 8 p | Andrew Huberman podcast host | Eats roughly noon to eight most days; says consistency matters more than the exact hours. | Huberman Lab #41 · 0:48:10 ↗ |
8–10 h · early | 7 a – 4 p | Satchin Panda author | Start eating within an hour or two of waking, finish by early evening — timing is the active ingredient. | Huberman Lab guest · 1:10:30 ↗ |
~10 h · daylight | 8 a – 6 p | Rhonda Patrick podcast host | Keeps a ten-hour window aligned to daylight; cites early-TRE trials on metabolic markers. | FoundMyFitness Q&A #62 · 0:22:40 ↗ |
12 h + FMD | 8 a – 8 p | Valter Longo author | Twelve hours daily is enough; the heavier lifting comes from five-day fasting-mimicking cycles a few times a year. | FoundMyFitness · 0:35:05 ↗ |
12 h | 7 a – 7 p | Gabrielle Lyon author | Keeps the overnight window modest so breakfast protein never gets squeezed out. | Gabrielle Lyon Show · 0:12:45 ↗ |
Window optional | — | Layne Norton author | Use a window only if it helps you eat less — there is no metabolic advantage beyond the calories. | The Drive #205 · 1:44:00 ↗ |
No fixed window | — | Peter Attia podcast host | Dropped time-restriction; now spreads protein across the day and watches total intake instead. | The Drive #248 · 1:02:14 ↗ |
Are multi-day fasts worth it?
David Sinclair — longer fasts are where the deeper benefits start; still runs multi-day fasts through the year. Lifespan ep 4 · 0:41:15 ↗
Peter Attia — quit prolonged fasting; the muscle loss outweighed benefits he couldn’t verify. The Drive #248 · 1:02:14 ↗
Valter Longo — multi-day water fasts are risky; a five-day fasting-mimicking diet does the job more safely. FoundMyFitness · 0:41:50 ↗
Layne Norton — no human outcome data supports multi-day fasting; it mostly costs lean mass. The Drive #205 · 1:51:20 ↗
Is skipping breakfast fine?
David Sinclair — skips breakfast every day and reports no downside. Lifespan ep 2 · 0:20:05 ↗
Satchin Panda — late-shifted eating blunts the benefit; the window should start early. Huberman Lab guest · 1:22:18 ↗
Valter Longo — skipping breakfast tracks with worse outcomes; eat within an hour of waking. FoundMyFitness · 0:38:30 ↗
Insufficient to compare
Autophagy in humans — two of eight address thresholds directly; no one is placed until they speak.
Position history — Peter Attia
changed position ×2newer statements supersede older onesNo daily window either; protein-first scheduling, total intake watched.
Drive #248 · 1:02:14 ↗Receipts, not authority.
Member-funded. No ads, no affiliates, no tracking — every position linked to the moment it was said. Not medical advice.