Eating for Better Sleep & Foods that Improve Metabolic Health | Dr. Marie-Pierre St-Onge

Key wellness strategies & takeaways (sleep ↔ nutrition ↔ metabolism)

1) Get sufficient sleep to improve hunger control and metabolic health

• In lab studies, sleep restriction (e.g., ~4 hours in bed for several nights) increased hunger drive and food intake.
• Sex-specific appetite effects:
  • Men: increased ghrelin (hunger hormone) with short sleep.
  • Women: reduced GLP-1 (satiety hormone) and less deep sleep.

2) Use awareness of “sleep-deprived cravings” to intervene

• If you slept poorly, pause and ask:
  • Do I actually want this food, or do I just need a “pick-me-up”?
• This can support better choices, such as:
  • deciding you “probably don’t need the extra calories,” or
  • choosing dessert intentionally if mood/energy recovery matters.

3) Prioritize fiber; reduce saturated fat and refined carbs to support deeper sleep

In an inpatient controlled-food study:

• Higher fiber intake → more deep/slow-wave sleep
• Higher saturated fat → less deep sleep
• More refined carbohydrates / simple sugars → more arousals
  • Arousals = transitions from deep to lighter sleep stages, not necessarily full awakenings.

4) Eat earlier in the day (avoid eating too close to bedtime)

• A recommended strategy: build a buffer of ~3 hours between your last meal and sleep (personal preference mentioned).
• Evidence discussed:
  • shifting later eating reduced slow-wave/deep sleep
  • reduced metabolic flexibility (e.g., fat oxidation)
• Practical approach:
  • shift more calories into the first two-thirds of your waking day
  • example window used in a metabolic-chamber study: ~8 a.m.–6/7 p.m. vs later windows

5) If you need a nap, keep it short and earlier

• Avoid napping too close to bedtime (can reduce sleep pressure and worsen sleep onset).
• Guidance mentioned:
  • ~30 minutes max
  • no more than ~1 hour
  • early in the day
• If you still need naps despite enough time in bed, consider investigating why nighttime sleep quality is poor.

6) Even mild, sustained sleep loss can worsen cardiometabolic markers

In a follow-up approach reducing sleep by ~1.5 hours/night for ~6 weeks:

• Insulin resistance increased
• Blood pressure increased
• Effects were worse in post-menopausal women than in pre-menopausal women (as described)

7) Timing of food affects metabolism (fat oxidation)

In a controlled metabolic-chamber study:

• Eating later (same foods/quantities, later eating window) → less fat oxidation
• Takeaway: it’s not only calories—when you eat also matters.

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Food/nutrient ideas discussed (beyond “sleep hygiene”)

Mediterranean/DASH-style patterns

• Observational + longitudinal findings referenced:
  • closer alignment with Mediterranean and DASH patterns linked to
    • higher likelihood of adequate sleep
    • fewer insomnia symptoms over time

Fermented, lower-sugar foods (with nuance)

• Kefir/fermented foods were discussed in relation to the gut microbiome and inflammation-related outcomes
• Note: some specific studies may show null results for certain endpoints, but fermented foods remain promising.

Medium-chain triglycerides (MCTs)

• May increase the thermic effect of food (slightly higher energy expenditure from meals)
• Potential body composition benefits vs controls in some studies
• Practical phrasing from the discussion:
  • use ~a tablespoon or two/day, typically in place of other oils (not necessarily additive)

Ginger

• A single-dose crossover design described ginger increasing the thermic effect of food over several hours
• Possible mechanism discussed: TRP/capsaicin-receptor pathways

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Behavioral “system” perspective (the loop)

Reduce the vicious cycle

• Poor sleep → worse hunger control/cravings → poorer food choices → worse sleep

Build the healthful cycle

• Better sleep → better food choices → better sleep (reinforces itself)

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Presenters / sources

• Dr. Marie-Pierre St-Onge / Dr. Marie Pierre St-Onge (guest; professor of nutritional medicine, Columbia University School of Medicine)
• Andrew Huberman (host; Stanford University; “Huberman Lab”)
• Nurses’ Health Study (cited; longitudinal sleep-duration/weight gain association; published 2006)
• MESA (Multi-Ethnic Study of Atherosclerosis) (nutrition + sleep cohort used in discussion)
• Women’s Health Initiative (longitudinal diet-quality + sleep/insomnia analysis discussed)
• Newmar (Neymar) Kovven (2022) (paper cited regarding sleep restriction and weight gain in ~2 weeks)
• Marta Garaulet (work cited on timing of eating/lunch timing and weight outcomes)
• Justin Sonnenberg (referenced re: low-sugar fermented foods/inflammation)
• McGill University (institution mentioned in kefir-related training/research context)
• McCormick company (donated spices for a ginger-related research idea, per discussion)