Essentials: Developing a Rational Approach to Supplementation for Health & Performance
In a Nutshell
Huberman's core framework: prioritize sleep, nutrition, and exercise first, then use broad-spectrum foundational supplements only if diet is insufficient, and finally layer targeted single-ingredient compounds after testing each one individually. For sleep, magnesium threonate/bisglycinate or apigenin shorten sleep latency and deepen rest; avoid theanine if vivid dreams cause awakenings. For hormones and focus, Tongkat Ali raises free testosterone, alpha-GPC and L-tyrosine boost acetylcholine and dopamine pathways without caffeine-like stimulation, and 1–3 g EPA omega-3 daily is the single most evidence-backed supplement for mood, metabolic, and cognitive health.
These notes were generated by AI and may contain inaccuracies.
Welcome to Huberman Lab Essentials, where past episodes are reviewed for the most powerful and effective scientific tools for improving mental and physical health and performance. This is Andrew Huberman, Professor of Neurobiology and Ophthalmology at Stanford University School of Medicine. Today we will discuss dietary supplements and a logical guide to their use. During this episode, specific questions will be asked that can be answered to determine whether or not dietary supplements should be taken.
Before beginning the discussion, a very important point is emphasized, not only with regard to nutritional supplements, but with regard to all aspects of mental and physical health and performance. Behavioral tools, that is, the actions taken and those avoided, form the basis of mental and physical health and performance. Therefore, things like watching sunlight in the morning and exercising are behavioral tools, and do not require consuming anything.
Secondly, the next layer is nutrition. No amount of nutritional supplements, whether prescribed or non-prescription, can compensate for malnutrition, at least not for a long period of time. Then, on top of that, what are commonly called nutritional supplements are added. Although the scope of this term is broadened to include not only what compensates for a lack of nutrients, or what is added to food to increase the amount of nutrients that can be obtained from it, but also unspecified compounds used for various purposes, many of which are not found in food. Therefore, nutritional supplements are placed directly above nutrition.
Next, prescribed medications are mentioned, which are prescribed by a certified doctor, of course. However, there are many cases where people can either reduce their prescribed drug doses or replace them with effective behavioral tools, proper nutrition, and dietary supplements. But often, prescription medications are the only way to achieve desired mental and physical health and performance goals. Therefore, it is considered the fourth level in a series of levels related to mental and physical health and performance.
Before going into the details, it is emphasized that the speaker is not a doctor and not a clinical therapist. Therefore, no medications are prescribed. As a university professor, scientific research is reviewed and the tools derived from it and developed based on it are explained. It is absolutely essential, when considering adding or removing any behavioral, nutritional, or supplemental protocols, and certainly protocols based on prescription drugs for any purpose, to consult a trusted and certified physician. This is indispensable.
The main focus of today's episode will not be discovering a particular dietary supplement, or a particular class of supplements, or a combination thereof, capable of making a qualitative leap in mental and physical health and performance. The goal is for the listener to understand their needs that can be met by dietary supplements better than any other way, and more importantly, how to think about dietary supplements. That is, how to think about the different categories of supplements available, and how they interact with diet and behaviors, to maximize health in the short and long term.
Indeed, the ideal dose for a particular supplement may be zero mg. For example, if asked: Do you get enough deep sleep every night? Do you feel comfortable throughout the day? The answer might be yes, feeling great, sleeping soundly, waking up refreshed and energetic, only needing a short nap, or no nap at all, during the day to feel rested all day. So there's no room for discussion about sleep supplements. But if insomnia is suffered, a wide discussion will open up about the causes. Is it related to nutrition, exercise, or caffeine consumption? In other words, dietary supplements cannot be discussed in isolation from the general context, but must be viewed within a broader context.
The optimal protocol for dietary supplements includes essential supplements, designed to provide a solid foundation or guarantee alongside the diet, to ensure all elements necessary to maintain a basic level of mental and physical health, and the opportunity to achieve optimal performance. This type of dietary supplement is the only one seen as appropriate, and even beneficial, to contain multiple ingredients. This raises an important question: Do you want to take vitamin and mineral supplements? The answer varies from person to person, but two key things should be considered: First, is the price suitable for the budget? Secondly, do you regularly consume sufficient and varied amounts of food to meet vitamin and mineral needs?
Vitamin and mineral supplements are suitable for people who are physically and/or mentally active, who do not follow an intermittent fasting regimen, and therefore do not eat large amounts of food, or restrict themselves to specific times of the day. However, it is very important to take these supplements with food, otherwise they may cause stomach upset. Essential dietary supplements naturally include vitamins and minerals, but have expanded over the past decade or more to include supplements containing vitamins and minerals, as well as other substances such as digestive enzymes.
When people ask if only going to take one supplement, which one should be taken, instead of giving one specific answer, three questions are asked: How is sleep at night? What is the diet like? What is the budget? After answering these three questions, and assuming that the person is able to spend about $100 or more per month on nutritional supplements, the advice is not to focus on any specific supplements to improve sleep, concentration, or boost hormones, but rather to focus on enhancing the basic diet, conditioners, probiotics, prebiotics, and digestive enzymes. Simply put, if they do that, they will raise the level of all biological and organic systems, which will lead to improved mental and physical health and performance, including sleep.
A broad-spectrum supplement containing many ingredients is the best way to ensure that basic needs are covered, and should be the starting point for any nutritional supplement regimen. This will allow feeling better overall, sleeping better, concentrating better, and supporting all the different systems in the brain and body, allowing being at the best, while of course taking care to nourish oneself. Because nutrition cannot be given up, and behavioral tools cannot be given up, many of which have been discussed repeatedly in this episode, such as sun exposure, exercise, and so on. A better life through chemistry requires a better life. This does not mean that chemistry does not help, but rather that chemistry through dietary supplements should be a supplement. This should be supportive of the behavioral and nutritional factors in life that are paid attention to and sought to improve.
Single-ingredient nutritional supplements are designed to achieve specific goals. Three main categories are addressed: sleep, hormone support, and enhancing cognitive abilities and concentration. When considering taking dietary supplements to improve sleep, important questions need to be asked about the quality of sleep, its depth, and the number of hours slept at night. If not getting enough sleep, two questions should be asked: Do you consume caffeine after 2 pm? If the answer is yes, then caffeine intake should be limited or stopped altogether after 2 pm. Secondly, most people are advised to avoid food during the two hours prior to going to sleep. But of course, not wanting to feel so hungry that it prevents sleeping. These are the nutritional and behavioral tools that everyone should consider.
For example, if someone sleeps well but wakes up in the middle of the night around 2 or 3 a.m., or at any other time, and finds it difficult to fall back asleep, there are a couple of dietary supplements that might be tried. The first type is myo-inositol, and it is usually taken at a dose of 900 mg. As for people who wake up in the middle of the night because their dreams are very vivid, these people are advised to avoid certain dietary supplements. Theanine is usually taken in doses ranging from 100 to 400 mg, and is beneficial for many people. But for people who experience very vivid dreams, these dreams can lead to immediate awakenings, and sometimes to some anxiety when waking up in the middle of the night. Therefore, some people who wake up suddenly in the middle of the night, suffering from mental and physical shock as a result of their intense dreams, are advised to avoid taking theanine supplements.
As for those who do not wake up in the middle of the night or do not suffer from very vivid dreams, but find it difficult to fall asleep, studies have proven the effectiveness of two dietary supplements in particular in shortening the time it takes to fall asleep, making it easier to do so. These are magnesium threonate, also known as magnesium bisglycinate. Both supplements have transport systems that allow them to easily cross the blood-brain barrier, causing a mild feeling of drowsiness. It is light in the sense that it will not prevent driving or dealing with any emergency situations that may occur in the middle of the night, but those who take these two supplements often notice that their transition time to sleep is much faster, and that their sleep is also deeper. Incidentally, these dietary supplements are also believed to be beneficial for supporting cognitive functions and protecting nerves, although little data is available on this aspect.
The other supplement is apigenin, which is derived from chamomile. Apigenin also acts as an anxiety-relieving compound, which is essential before bedtime so that a person can calm their thinking, reduce rumination, solve problems, and anticipate the future, which is a prerequisite for sleep.
The best way to take supplements that help fall asleep faster and stay asleep depends on the situation. If the budget allows, and simply wanting to fall asleep faster, and it doesn't matter which of these two ingredients will be more effective, one can try one of them, for example, magnesium threonate, for a week, and observe its effect on sleep speed. Or one can try Apigenin in the first week. Or one can combine them. Alternatively, one could try magnesium threonate for a week, then switch to apigenin only for another week, and assess which is best. If neither of them works, combining them is recommended. This is how any scientist designs an experiment to understand the variables, i.e., to identify the most effective components to achieve the desired result, rather than simply putting them together and taking them.
However, many people are so eager to get excellent sleep that they simply say: Okay, I'll take magnesium threonate, apigenin, and theanine. If my dreams are too vivid and I wake up in the middle of the night because of them, I'll stop taking theanine. Many people are already benefiting from this approach. Taking any medication for a week, provided it does not cause any side effects, is a good thing. If the medication causes any side effects, it should be stopped immediately. If it does not cause any side effects, it is best to try a one-ingredient formula for about a week without changing anything else in the diet, and then see what works best, and whether combining different ingredients is more effective. Once intuition or sensitivity to the effect of different ingredients is developed, this becomes a very important attitude because it will help reduce costs. Things that are not working will be found, and more importantly, things that will give excellent results in achieving goals.
Any discussion about sleep supplements must include talk about melatonin. Melatonin is a hormone known for its ability to induce sleepiness, but it does not keep us asleep. Therefore, people often take melatonin, fall into a deep sleep, then wake up and find it difficult to fall back asleep. Another reason is that melatonin supplements almost always contain levels or amounts of melatonin that far exceed the normal biological levels, or so-called endogenous levels of melatonin, that the body normally produces. It is true that less melatonin is produced as we age, but it is very clear that melatonin affects not only sleep, but other systems in the brain and body.
The next category of nutritional supplements is hormone support. The discussion about supporting and enhancing hormones must include reference to the fact that nutrition, how it affects hormones, and how hormones such as insulin affect other hormones such as free testosterone, must be taken into account. It is also important to remember that behaviors affect hormone levels. Exposure to sunlight in the morning increases cortisol levels. It is very important that cortisol levels are high in the early morning for concentration, alertness and immune functions, and low at night, allowing for high levels of growth hormone and testosterone, which are secreted mainly in the early morning, at night and in the early morning. Therefore, behavior and nutrition should be paid attention to before thinking about taking hormone supplements.
After all that has been said, some examples of supplements that work directly on specific hormonal pathways are given, with the aim of achieving more specific goals, such as raising testosterone levels or free testosterone. Hormones testosterone and estrogen are present in both males and females. Both are important for things like libido, muscle growth, etc.
Vadugia agristis herb is an herb talked about previously on the podcast. When taken in doses of 600 mg daily, many (but not all) people report increased libido, increased sperm production, increased testosterone levels, and in some cases, increased estrogen levels and a range of post-luteinizing hormones. Whether one will respond to Vadugia agrestis or not, there is no way to know except by trying it. If taking this route, there are two very important considerations. Firstly, there are many studies indicating that Vadugia agriestis may be toxic to testicular cells, and possibly other cells, when taken in very high doses. Therefore, adhering to the specified doses of Vadugia agriestis, as stated on the labels of the various products, and following the rotation system for taking them, is of utmost importance. Some people need to take it for 8 consecutive weeks, then stop for 2 weeks. While others choose to take it for 12 consecutive weeks, then stop for a month. Adhere to the recommended dosages. The dose can be reduced, but avoid increasing it. It is wise to follow the rotation system approximately every 8 weeks, then stop for two weeks, then resume taking it if desired, or take it for 12 consecutive weeks, then stop for a full month before repeating that. Just because there is a recommended dose of Vadugia agriestis, say 600 mg daily, does not mean taking double that dose and expecting double the benefits. This is not a sound approach, especially with a plant like Vadugia agriestis, which can be toxic when ingested in high doses. But it's also important to consider taking a lower dose and monitor its effect on hormones. This approach requires more patience.
It is very important when thinking about exercise, nutrition, or supplements to think long-term, to think about what works in the short and long term, and to be gradual in any supplement regimen. Vadugia agriestis is a good example of a dietary supplement known for its potent effects, but it should be used with caution, bearing in mind that the range of effective doses should be narrow to avoid any problems.
Tongkat Ali is known to increase free testosterone by reducing sex hormone-binding globulin. Tongkat Ali can be beneficial for both men and women at doses ranging from 200 to 600 mg daily. To knowledge, using Tongkat Ali does not require regular cycles, meaning there is no need to stop using it for periods of time. It should be noted that the effects of Tongkat Ali may take longer to appear, so it is advisable to have blood tests done 8 to 12 weeks after starting to use it, rather than doing them earlier. It appears to have cumulative effects on libido, suggesting that its influence is on neural rather than hormonal pathways. Hormonal pathways may be slow, but neural pathways are generally responsible for gradual changes in any physical or psychological aspect, which stabilize over time.
Finally, regarding dietary supplements to boost hormones, something related to women's health is pointed out, namely the menstrual cycle. During the menstrual cycle, different hormones are present at varying levels. The level of follicle-stimulating hormone is very high during what is called the follicular phase. Then comes the yellow phase. The point to make clear now is that women should fully expect that some dietary supplements, not all of them, but some, due to their effect on different hormones, may have varying, and perhaps even opposing, effects at different stages of the menstrual cycle. For this reason, it is very important to carefully control the dosage and individual ingredients in a dietary supplement regimen. This underscores the critical importance of controlling each ingredient individually, controlling the dosage, and being able to stop taking one or more ingredients depending on the overall health condition. It is clear that the menstrual cycle causes a profound shift in hormones, and therefore in the biological and psychological environment of the entire body.
The next category of nutritional supplements are supplements related to improving cognitive abilities and concentration. When discussing nutritional supplements for improving cognitive abilities and concentration, a major category of them falls under the category of stimulants, which often includes caffeine, along with other sources of stimulants. If wanting to increase alertness and focus, caffeine is an effective way to achieve that. It is effective.
The other category of stimulants that improve alertness and concentration are those that increase adrenaline in some way, by affecting what is called the adrenal system. One of these substances is yohimbine, and its various types, such as alpha-yohimbine. There are now multiple forms of these materials. It is recommended to visit examine.com to learn about the different types of yohimbine. Some types of yohimbine act as effective stimulants. One of its forms is called alpha-yohimbine, sometimes known as rauwolscine. It is alpha-yohimbine, and is used as a stimulant, and is often also used to promote fat loss and alertness. It is a very powerful dietary supplement, but it may be risky. Some people feel very anxious when consuming it, and this may be due to consuming it on an empty stomach or while following a low-calorie diet. It is more like an unconventional experience, which may not suit some, while others may find it a very effective stimulant.
In general, with regard to dietary approaches to increase cognitive function and concentration, caffeine, whether in coffee or tea, or in the form of tablets or capsules, but in doses lower than those found in coffee and tea, is a suitable option for exploring stimulant-based approaches to improve cognitive function and concentration. This is mentioned not because thinking that caffeine improves alertness and concentration is probably not known—most people know that, and it is acknowledged—but as a point of comparison with another dietary approach to increasing cognitive function and concentration, which is increasing certain non-stimulating neurotransmitter pathways.
For example, alpha-GPC, a choline donor, works in pathways associated with the neurotransmitter acetylcholine, and can improve focus. Therefore, when taking doses ranging between 300 and 600 mg, people experience higher levels of concentration for both mental and physical work. Alpha-GPC has a half-life of about 4 to 6 hours, so it is relatively short-acting; however, it is not recommended to take it right before bedtime. It is not a stimulant, but rather it improves focus by increasing acetylcholine and its neural pathways specifically. It is true that it causes a slight increase in alertness, so some may feel a general increase in stimulation, but it is different from the effect of stimulants that contain caffeine. For example, taking 300 to 600 mg of alpha-GPC alone helps to increase concentration, without causing feelings of nervousness or overstimulation.
Similarly, taking a dose of 500 to 1000 mg, or somewhere in between, of a substance like L-tyrosine, an amino acid that is a precursor to dopamine, a different neurotransmitter, whether taken alone or with other substances, separating these substances by product is believed in, but alpha-GPC and L-tyrosine should be taken together if already tried separately and found effective, and then decided to combine them. What people usually notice is that the cholinergic stimulation from alpha-GPC and the dopaminergic stimulation from L-tyrosine, or simply L-tyrosine alone or alpha-GPC alone, leads to increased focus without the general sense of alertness produced by stimulants that one might experience with caffeine. Indeed, or rather of course, there are products and people that combine these three substances: caffeine, alpha-GPC, and L-tyrosine. While not saying this is good or bad, when starting to explore the effects of any dietary supplement on improving cognition and concentration, asking which stimulant it is is advised. For example, caffeine and alpha-yohimbine. Which has a greater effect on neurotransmitter systems such as alpha-GPC and L-tyrosine? To clarify, while caffeine and alpha-yohimbine increase alertness without improving concentration, alpha-GPC and L-tyrosine improve concentration more with a slight increase in alertness. This, of course, is why people often eat them together. It is a very important distinction that most people are unaware of. A stimulant-based approach or a neurotransmitter-based approach is not better or worse. They are simply different from each other. However, it is important to study each one separately before combining them into a single formula. Studying each component individually will be the best way to determine what suits you. Usually 300 mg of Alpha-GPC is taken before doing any mental work.
Combining L-tyrosine with caffeine from coffee or yerba mate tea. L-tyrosine is effective at raising concentration level, but can cause a sharp drop in energy afterwards. Some people tolerate it well and like it. Phenylethylamine is used as an alternative to increase dopamine, though it is somewhat short-acting. Arrived at these protocols through personal experimentation with different ingredients, trying each ingredient individually before combining them into any mixture, and before taking them before exercise or before any activity that requires mental concentration. Recommend exploring them the same way to determine the best protocols that suit you.
There is a class of dietary supplements that can greatly enhance the likelihood of alleviating depression, and perhaps improve mood directly or indirectly. Evidence in the scientific literature supports improvements in metabolic functions, cardiovascular functions, and enhanced ability to concentrate at work. This refers specifically to essential omega-3 fatty acids, particularly the omega-3 form of essential fatty acids. Data shows that taking 1 to 3 grams of eicosapentaenoic acid (EPA) in particular, whether in the form of fish oil capsules or liquid, can be beneficial to a number of aspects of brain and body health, and can improve concentration and cognitive ability.
If someone has a limited budget for buying supplements and cannot afford a basic supplement of the type discussed earlier, such as Athletic Greens or the like, but has a budget that allows them to buy a high-quality fish oil rich in omega-3 fatty acids, consume it in sufficient quantities to exceed the threshold of 1 gram of eicosapentaenoic acid (EPA) per day. This is extremely important. Product labels often show 1500 or 1600 milligrams of essential fatty acids, but the most important is eicosapentaenoic acid (EPA) to ensure exceeding the 1 gram per day threshold.
If asked which single-ingredient supplement plays the biggest role in improving mental and physical health and performance, fish oil rich in high-quality omega-3 fatty acids would be the answer. The decision must be made based on budget and other factors.
This category includes supplements derived from or mimicking food sources, such as whey proteins, milk proteins, egg proteins, or plant proteins. This discussion deserves a whole episode. To understand which protein types and sources are most bioavailable, best for protein synthesis, post-exercise recovery, muscle building, etc., refer to the segment in the episode conducted with Dr. Lynn Norton, where he talks about total daily protein needs. These requirements amount to approximately 1 gram per pound of body weight per day for most people, although there is some variation depending on activity.
The quality of the sources of these different proteins is extremely important. This leads to discussion about the quality and type of protein found in supplements such as whey protein or casein, which is a dietary supplement derived from milk protein. This discussion is divided and dated in the episode conducted with Dr. Lynn Norton, available on hubermanlab.com. He pointed to interesting data on potato protein, considering it an excellent plant-based alternative for those who do not wish to consume whey protein. Whey proteins are very useful for reaching or exceeding the required protein level for many reasons, not only for building muscle, despite their great benefits in this area, but also for other purposes.
While these products can play a big role in providing meal replacements that you might not otherwise eat, and while they are often very convenient because you can drink your calories instead of eating them, most people would agree that getting a large part of your nutrition from whole foods would be beneficial for a variety of reasons. Particularly the fiber that comes with whole foods, a large part of the food that tends to make us feel full, and of course the fact that many of the vitamins, minerals and other things found in foods, as well as the essential fatty acids in foods like animal proteins, will not be present in most, if not all, of these food-mimicking powders and substitutes.
Unless discussing basic nutritional support, i.e., providing vitamins, minerals, digestive enzymes, probiotics, prebiotics and conditioners, focus should be on individual ingredient combinations. Basic supplements that include everything mentioned, combined into one supplement, are good. There is no other practical or reasonable way to obtain all of these elements through combinations of individual components. However, when thinking about things like dietary supplements to improve sleep, hormone health, or cognitive function, and exploring them practically, individual ingredient combinations will give maximum effectiveness and control.
Individual ingredient combinations ensure determination of the lowest effective doses, and elimination of anything that is unsuitable or that may harm in any way. It is not just about cost-effectiveness, it is also about accessing small groups or combinations of supplements that can be controlled and used effectively, so that there is no complete dependence on them, but actually feeling that they enhance the various aspects of health that are important. This is the essence of the episode, although specific nutritional supplements and their functions in various areas of physical and mental health have been touched upon previously. The episode was primarily aimed at providing resources and a framework for thinking about how to take dietary supplements, how to overcome obstacles and challenges, how to get the most out of diet without spending a fortune, and if there is no budget to explore many supplements, how to identify the most effective supplements as quickly as possible and get the most out of them.
Although the word "dietary supplements" suggests that these compounds are used only to compensate for deficiencies in nutrition or other aspects of life, many of them are in fact very effective compounds. These are powerful molecules sold without a prescription, and they have a noticeable effect on the ability to think more clearly, sleep better, and support hormone function. As always, it is just one element within a system of other factors, such as behaviors, including what to do and what to avoid, such as diet, and perhaps even medications currently taking or wishing to reduce the dose of or even stop taking altogether. Consult a doctor before taking it. The basic idea is that what is called "dietary supplements" is actually an effective tool within a larger system, tailored specifically to each person, to personalize the tools needed for mental and physical health and performance.
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