Nutrients for Brain Health & Performance
This episode details science-supported nutrients for brain function and nervous system health, offering 10 tools like Omega-3s, creatine, and choline. It also explores the neural basis of food preference, gut-brain signaling, and how to leverage learned associations to prefer healthier foods.
Deep Dive Analysis
16 Topic Outline
Introduction to Food and Brain Function
Key Takeaways from Time-Restricted Feeding
Foundational Aspects of Brain Health and Nutrition
Omega-3 Fatty Acids (EPA) for Brain Structure and Function
Phosphatidylserine's Role in Cognition and Decline
Choline and Acetylcholine for Focus and Alertness
Creatine Supplementation for Brain Function
Anthocyanins from Berries for Cognitive Health
L-Glutamine for Cognition and Offsetting Hypoxia
Neural Basis of Food Preference: Taste, Gut, and Beliefs
The Central Role of Taste Perception in the Brain
Neuropod Cells and Subconscious Gut Signaling
Learning to Like Specific Tastes and Brain Metabolism
Impact of Artificial Sweeteners on Metabolism
Leveraging Beliefs and Pairing to Reshape Food Preferences
Understanding Food Reward and Its Implications
5 Key Concepts
Neuromodulator (Acetylcholine)
A chemical in the brain and body that modulates the function of many circuits, enhancing activity in certain areas (like those involved in focus and alertness) and downplaying others, acting as a conductor for neural activity.
Insular Cortex (Insula)
A brain structure primarily concerned with interoception, which is our perception of what's going on inside our body. This includes sensations like gut pressure, acidity, and internal states such as stress, alertness, and the interpretation of taste.
Neuropod Cells
Specialized nerve cells located in the gut lining that sense the chemical content (amino acids, sugars, fatty acids) of digested food. They send subconscious electrical signals to the brain via the nodos ganglion, triggering dopamine release to motivate seeking more of those foods.
Hardwired vs. Softwired (in biology)
Hardwired refers to biological systems that are immutable and unchangeable, such as the general location of language centers in the brain. Softwired refers to systems that are plastic and can change or adapt based on experience, like the specific language learned or individual food preferences.
Belief Effect (on physiology)
The phenomenon where an individual's subjective beliefs and thoughts about what a given food will do for them directly impact physiological measures, such as blood sugar and insulin response, even if the actual nutritional content is identical.
10 Questions Answered
Getting quality and ample sleep regularly is paramount for mental and physical health. Additionally, 150-180 minutes of cardiovascular exercise per week is crucial for heart health, which directly supports the brain's oxygen and glucose supply.
EPA omega-3s are crucial for the structural integrity of neuron membranes, which are made of structural fat. Maintaining these healthy membranes is vital for electrical activity, communication between neurons, and overall cognitive function.
Choline is essential for the biosynthesis of acetylcholine, a neuromodulator that enhances focus, alertness, and overall cognitive activity. Primary dietary sources include egg yolks, potatoes, nuts, seeds, grains, and fruit.
Creatine can serve as a fuel source in the brain and enhance the function of frontal cortical circuits involved in mood regulation and motivation. It's particularly useful for those not consuming meat, with studies showing cognitive benefits at 5 grams per day.
Dark-skinned berries contain anthocyanins, which have been shown to reduce DNA damage and slightly reduce cognitive decline, potentially by lowering inflammation or through direct effects on neurons.
L-Glutamine can offset negative cognitive effects caused by altitude and oxygen deprivation, such as those associated with sleep apnea, by reducing inflammation. It also contributes to satiety by being sensed by gut neurons.
Our food choices are driven by (1) the conscious taste sensations in the mouth (bitter, sweet, umami, salty, sour), (2) subconscious signaling from neuropod cells in the gut about nutrient content, and (3) learned associations between taste and the metabolic value of food.
No, taste is an internal representation within the brain. Studies show that selectively activating or silencing brain neurons responsible for sweet or bitter tastes can alter food preference, demonstrating that the perception of taste is a central brain phenomenon, not just a peripheral one.
Consuming artificial or non-caloric sweeteners alongside foods that elevate blood glucose can disrupt blood sugar management. This pairing can lead to a significant increase in insulin release later, even when only the artificial sweetener is consumed, potentially contributing to insulin dysregulation and pre-diabetic states.
Yes, food preferences are highly plastic. By consciously pairing foods that are currently 'meh' or mildly disliked (but are healthy) with foods that appropriately shift brain metabolism (e.g., raise blood glucose or provide ketones), the dopamine system can be conditioned to reinforce the healthy food, making it more palatable over time.
16 Actionable Insights
1. Prioritize Quality & Ample Sleep
Make sure to get quality and ample sleep on a regular basis, as it is the foundation of all mental and physical health, directly impacting focus, learning, and long-term brain health.
2. Engage Regular Cardiovascular Exercise
Aim for 150-180 minutes of cardiovascular exercise per week to support heart health, which is crucial for delivering oxygen and glucose to the brain and maintaining its function.
3. Ensure Proper Hydration & Electrolytes
Drink adequate water and ensure sufficient intake of electrolytes (sodium, magnesium, potassium), for instance by dissolving one packet of Element in 16-32 ounces of water first thing in the morning and during exercise, as they are vital for optimal brain and body function, including the electrical activity of neurons.
4. Rewire Food Preferences for Health
To develop a preference for healthy foods you don’t currently enjoy, pair them with foods that increase brain metabolism within the same meal for 7-14 days; this leverages the brain’s reward system to make healthy foods more palatable and desirable over time.
5. Leverage Belief for Physiological Response
Consciously adopt the belief that healthy foods are beneficial for your brain metabolism and overall health, as your subjective thoughts can directly influence physiological responses like blood sugar and insulin.
6. Manage Artificial Sweetener Consumption
If you consume artificial sweeteners, do so away from any foods that raise blood glucose levels, as pairing them can disrupt blood sugar management by increasing insulin release and potentially leading to pre-diabetic states.
7. Consume Omega-3s (EPA) Daily
Ingest 1.5-3 grams of EPA daily, either through foods like fatty fish (mackerel, salmon, herring, oysters, sardines, anchovies, caviar), chia seeds, walnuts, soybeans, or supplementation, to support neuron structure, enhance mood, and maintain cognitive function.
8. Consume Ample Choline Daily
Strive for 500-1000 milligrams of choline per day from sources like eggs (especially yolks), potatoes, nuts, seeds, grains, fruit, or certain fish, as it is vital for producing acetylcholine, which enhances focus and alertness.
9. Consume Phosphatidylserine Daily
Obtain phosphatidylserine from meats, fish, or cabbage, or supplement with 300mg per day, as it directly supports neuronal function, improves cognition, and reduces cognitive decline.
10. Supplement Creatine for Brain
Consume 5 grams of creatine monohydrate daily, either from meat sources or supplementation, to enhance brain function, utilize it as a fuel source, and potentially aid mood regulation and motivation.
11. Consume Anthocyanin-Rich Dark Berries
Eat 60-120 grams of fresh dark berries (blueberries, blackberries, black currants) daily, or supplement with 400-600mg (or 5.5-11g for higher efficacy) of anthocyanin extract, to improve brain function, reduce DNA damage, and mitigate cognitive decline.
12. Consume Glutamine for Cognition
Ingest glutamine from protein-rich foods (cottage cheese, beef, chicken, fish, dairy, eggs, beans, cabbage, spinach, parsley) or supplement with 1-10 grams per day, as it can help offset sugar cravings and mitigate cognitive deficits associated with oxygen deprivation (like sleep apnea) by reducing inflammation.
13. Maintain Healthy Gut Microbiome
Ingest 2-4 servings of low-sugar fermented foods daily, such as natto or sauerkraut, to enhance the gut’s mucosal lining and support beneficial microbiota that promote healthy food seeking signals to the brain.
14. Implement Time-Restricted Feeding Protocol
Begin your feeding window at least one hour after waking and end it 2-3 hours before sleep, maintaining this window at roughly the same time each day, to benefit weight management, fat loss, organ health, sleep quality, and cognition.
15. Supplement Vitamin D3K2 Daily
Supplement with Vitamin D3K2, as D3 is essential for various aspects of brain and body health (many are deficient), and K2 regulates cardiovascular function and calcium in the body.
16. Consider Alpha-GPC Supplementation
Consider supplementing with 300mg of alpha-GPC 2-3 times per week, preferably early in the day, to enhance choline function and support the acetylcholine pathway for focus.
3 Key Quotes
What your brain, meaning what you are seeking when you eat, is not taste, is not dopamine, is not even a rise in blood glucose. What you're seeking, even though you don't realize it because it's subconscious, is you are seeking things that allow your neurons to be metabolically active.
Andrew Huberman
Taste is an internal representation that has particular goals for you. Your sense of what tastes good is related to particular things that are occurring in your brain and body and that are likely to give your brain and body the things that it needs.
Andrew Huberman
As much as is reasonably possible, if you want to extract the maximum benefit from time-restricted feeding, the idea is to keep that feeding window at more or less the same phase, as it's called, of each 24-hour day.
Andrew Huberman
2 Protocols
Time-Restricted Feeding Protocol (for maximum benefit)
Andrew Huberman- Begin the feeding window at least one hour after waking.
- End the feeding window at least two, ideally three, hours before going to sleep.
- Keep the feeding window at more or less the same period of each 24-hour day.
Reshaping Food Preferences Protocol
Andrew Huberman- Identify healthy foods that you want to consume more of but currently find somewhat neutral or mildly unappetizing.
- Pair these foods in the same meal with other foods that provide a shift in brain metabolism (e.g., raise blood glucose if not ketogenic, or provide ketones if ketogenic).
- Maintain this pairing consistently over time (e.g., 7-14 days) to allow the dopamine system to reinforce the healthy food, leading to increased palatability and desire.