Key Moments
Eating for Better Sleep & Foods that Improve Metabolic Health | Dr. Marie-Pierre St-Onge
Andrew HubermanWant to know something specific about what's covered?
We've already dissected every moment. Ask and we will deliver (with timestamps).
Key Moments
Poor sleep dramatically increases appetite, with men experiencing higher hunger hormones and women reduced satiety signals, leading to an average 300-calorie overeating.
Key Insights
Moderate sleep deprivation (4 hours/night) in men increases ghrelin (hunger hormone), while in women it reduces GLP-1 (satiety hormone), leading to an average 300-calorie increase in intake.
A Mediterranean or DASH diet is associated with a lower likelihood of developing insomnia symptoms.
Consuming more fiber is linked to increased deep sleep, whereas higher saturated fat intake is associated with less deep sleep, and refined carbohydrates lead to more arousals, reducing sleep quality.
A sustained mild sleep restriction (6 hours/night for 6 weeks) can increase insulin resistance and blood pressure, indicating adverse cardio-metabolic outcomes.
Eating meals earlier in the day, within the first two-thirds of waking hours, is associated with reduced fat oxidation and better weight management compared to later meal timing.
While certain seed oils may show better lipid profiles than saturated fats in some studies, the processing of these oils in foods like chips can create concerning compounds.
Sleep restriction fuels appetite and alters hunger hormones
Sleep deprivation significantly impacts appetite- regulating hormones. Population studies show a link between short sleep and higher BMI, with long-term tracking revealing weight gain in those sleeping 5-6 hours compared to 7-8 hours. To establish causality, lab studies subjected participants to 4 hours of sleep per night for five nights. In men, this led to an increase in ghrelin (hunger hormone), while in women, it reduced GLP-1 (satiety hormone). This hormonal shift, combined with heightened reward center activity in the brain, contributed to an average overeating of 300 calories in the sleep-restricted condition. Intriguingly, these sex-specific differences were not apparent when all participants were analyzed together, suggesting prior studies in men may have skewed findings on ghrelin response. The research highlights that even moderate, chronic sleep loss can disrupt the body's natural hunger and satiety signals.
Dietary patterns influence sleep quality and duration
Conversely, dietary choices can profoundly impact sleep. Research using data from large cohorts like the Multi-Ethnic Study of Atherosclerosis (MESA) and the Women's Health Initiative revealed that diets aligning with the Mediterranean or DASH (Dietary Approaches to Stop Hypertension) patterns are associated with better sleep. Specifically, adherence to these healthier diets correlated with a reduced likelihood of developing insomnia symptoms. Further controlled studies showed that when participants self-selected their diets after a period of adequate sleep, they consumed more calories, higher saturated fat, and refined carbohydrates, which were linked to longer time to fall asleep and reduced deep sleep. A higher intake of fiber, conversely, was associated with more deep sleep.
Cardio-metabolic risks emerge with sustained mild sleep restriction
While acute severe sleep restriction (4 hours/night) in a controlled lab setting didn't immediately alter glucose, insulin, or cortisol levels, longer-term, milder restriction showed significant detrimental effects. In a 6-week study where participants slept 6 hours per night, adverse cardio-metabolic outcomes emerged, including increased insulin resistance and elevated blood pressure. These effects were more pronounced in post-menopausal women. This suggests that while severe, short-term sleep loss might not immediately impact these markers in a controlled environment, sustained, mild sleep insufficiency, more akin to real-world scenarios, poses a tangible risk to metabolic and cardiovascular health. The implications point towards the importance of consistent, adequate sleep for long-term well-being.
Meal timing and specific nutrients affect metabolism and sleep
The timing of meals plays a crucial role in metabolic health. Studies indicate that eating later in the day can reduce fat oxidation compared to consuming the same foods earlier. Participants who shifted their eating window to start five hours later reported less fat burning during the day. This reinforces the idea that aligning food intake with our natural circadian rhythms, favoring consumption in the first two-thirds of the waking day, is beneficial. Specific nutrients also show promise: while kefir did not impact cholesterol in one study, fermented foods are generally considered beneficial for gut health. Ginger has been shown to increase the thermic effect of food, potentially boosting energy expenditure. Medium-chain triglycerides (MCTs), found in purified oils, also increased the thermic effect of food and, in studies, led to greater weight loss compared to other fats when used as a replacement, not an addition, to the diet.
Understanding the complexities of food and health research
The field of nutrition research is complex, with challenges in isolating variables and interpreting results. Industry-sponsored studies, while sometimes yielding unexpected findings like corn oil chips improving lipid profiles compared to other snacks, are not inherently flawed, provided they allow for open publication of results, including null findings. However, the tendency to publish exciting results while less significant ones remain unpublished is a broader issue across scientific research. The debate surrounding seed oils versus saturated fats highlights differing views on processing and metabolic impact. Ultimately, understanding nutrition requires critical evaluation of individual foods, dietary patterns, meal timing, and a focus on whole, less processed foods, while acknowledging that personal health needs can vary.
Sex differences in sleep and metabolic health
Substantial sex differences exist in sleep patterns and their metabolic consequences. Women tend to sleep longer but report poorer sleep quality and higher rates of insomnia. Physiologically, women are more sensitive to the negative impacts of poor sleep on metabolic outcomes, such as blood pressure response to sleep apnea. While hormonal fluctuations and societal roles may contribute, the research indicates a need for more sex-specific considerations in understanding and addressing sleep health and its links to overall well-being.
Mentioned in This Episode
●Supplements
●Products
●Software & Apps
●Companies
●Organizations
●Books
●Drugs & Medications
●Studies Cited
●Concepts
●People Referenced
Diet & Sleep Interaction: Quick Guide
Practical takeaways from this episode
Do This
Avoid This
Common Questions
Modest sleep deprivation (e.g., 4 hours/night for 5 nights) increases ghrelin (hunger hormone) in men, driving desire to eat. In women, it reduces GLP-1 (satiety hormone), meaning they feel less full and may not stop eating.
Topics
Mentioned in this video
A protein bar with 20 grams of protein, 150 calories, and zero grams of sugar, described as tasting like candy bars and used by the host as a snack to hit protein goals.
A fat source used in one of Dr. St-Onge's studies as a control comparison to MCT oil, noted for its high saturated fat content and solidifying at room temperature.
A fermented dairy product that Dr. St-Onge studied for her master's thesis to see if it improved cholesterol synthesis, which resulted in a null finding in that specific study and population.
A brand of corn chips from Frito-Lay that was used in a study to assess the health benefits of corn oil, showing improved lipid profiles when substituted for other snacks.
A brand of corn chips from Frito-Lay that was used in a study to assess the health benefits of corn oil, showing improved lipid profiles when substituted for other snacks.
Continuous Positive Airway Pressure machine, a common treatment for sleep apnea that requires a prescription to ensure correct pressure settings.
A brand of corn-based puffed snacks from Frito-Lay that was used in a study to assess the health benefits of corn oil, showing improved lipid profiles when substituted for other snacks.
Extracted from spent coffee grounds, these led to greater loss of adipose fat tissue in overweight men when included in a coffee beverage, but the product was not marketed due to the lack of effect in women.
A supplement known to support cardiovascular, cellular, brain health, and overall energy, which AG1 offers as a free bonus.
A vitamin, mineral, probiotic drink that also includes prebiotics and adaptogens, described as a comprehensive foundational nutritional supplement supporting gut health, immune health, and overall energy.
Studied for its functional benefit on energy expenditure, ginger powder dissolved in warm water significantly elevated the thermic effect of food over a 6-hour period.
An enzyme supplement taken by the host to help digest histamines and prevent sleepiness after consuming certain foods like whey protein or broccoli.
A purified liquid oil containing 8-10 carbon chain fatty acids. Studies showed an increase in the thermic effect of food and improvements in body composition and weight status with MCT oil consumption, and greater weight loss compared to olive oil.
A co-enzyme that supports cardiovascular, cellular, brain health and overall energy, which AG1 offers as a free bonus.
A mattress and pillow company that customizes products to unique sleep needs based on a two-minute quiz, contributing to better sleep quality.
A snack food company that funded a study on corn oil fried chips, which showed that substituting them for other snacks alleviated cardiovascular risk factors.
A company that donated spices for research, leading to Dr. St-Onge's study on ginger.
An online platform offering professional therapy with licensed therapists, noted for its ease of use and high client satisfaction.
A company that partners with Helix Sleep, allowing customers to use HSA/FSA dollars for purchasing mattresses.
Public educator on protein and nutrition, who reassured that most protein requirements can be met with two meals and a snack, dispelling the myth of limited protein assimilation per meal.
Head of the pain center at Stanford and a colleague of Andrew Huberman, who discovered that gut pain was related to histamine-containing foods like onions, leading to his avoidance of them.
Researcher who showed that in her weight loss program in Spain, participants who ate lunch earlier had better weight loss outcomes.
An expert at Columbia Medical Center who works on eating disorders.
Researcher who published a paper in 2022 showing that participants gained half a kilo in two weeks with sleep restriction of about 5 hours per night.
Host of the Huberman Lab podcast and a professor of neurobiology and ophthalmology at Stanford School of Medicine.
A researcher at Stanford whose work on low-sugar fermented foods has been found very informative for lowering inflammation.
Guest on the podcast, a professor of nutritional medicine at the Institute of Human Nutrition at Columbia University School of Medicine, specializing in the bidirectional relationship between sleep and food.
A previous guest on the Huberman Lab podcast who publicly advocated for publishing negative or null research results.
Creator of the Portfolio Diet, designed for maximal cholesterol reduction, initially high in soy protein, nuts, plant sterols, and soluble fiber.
The book authored by Dr. Marie-Pierre St-Onge, mentioned by the host for listeners to learn more about her work.
A scientific journal where a colleague of Dr. St-Onge recently published a paper on biological clocks and aging in different organs, indicating optimal sleep duration for aging.
Andrew Huberman's first book, covering protocols for sleep, exercise, stress control, focus, and motivation, with scientific substantiation.
A hormone that was previously shown to be reduced as a result of sleep restriction in other studies, which was reproduced in Dr. St-Onge's findings when analyzing data from men.
A satiety hormone that was found to be reduced in women as a result of short sleep in Dr. St-Onge's study, leading to greater food intake.
A hormone that triggers food intake, which was found to increase in men in response to short sleep in Dr. St-Onge's study.
A diet designed by David Jenkins for maximal cholesterol reduction, which showed similar cholesterol-lowering effects as statins. It includes soy protein, nuts, plant sterols, and soluble fiber, and has been expanded to include legumes and monounsaturated fats.
More from Andrew Huberman
View all 387 summaries
37 minEssentials: Psychedelics & Neurostimulation for Brain Rewiring | Dr. Nolan Williams
169 minPeptides: The Science, Uses & Safety | Dr. Abud Bakri
36 minThe Science & Process of Healing from Grief | Huberman Lab Essentials
137 minBuild Muscle, Great Posture & Resilience to Injury | Jeff Cavaliere
Ask anything from this episode.
Save it, chat with it, and connect it to Claude or ChatGPT. Get cited answers from the actual content — and build your own knowledge base of every podcast and video you care about.
Get Started Free