Andrew Huberman, a neuroscientist and popular science communicator, has publicly detailed a supplement protocol designed to support sleep quality, cognitive focus, sustained energy, and stress resilience. Unlike influencer-driven supplement stacks heavy on exotic ingredients, Huberman's approach is rooted in mechanistic understanding and peer-reviewed evidence. His protocol emphasizes foundational nutrients and is intentionally modular—designed to be adjusted based on individual response and life circumstances. This article breaks down the core compounds, their proposed mechanisms, evidence quality, and how to integrate them into a coherent routine.

Huberman's Philosophy: Foundational Nutrition First

Huberman's supplement strategy is not a fixed prescription but a framework. In public talks and podcast episodes, he has emphasized that supplements are most effective when three preconditions are met: consistent sleep (7–9 hours), regular light exposure (especially morning sunlight), and exercise (ideally combining strength and cardiovascular training). Only after these lifestyle pillars are in place does he recommend adding supplements.

The stack itself prioritizes compounds with established mechanisms in human neurobiology and multiple supporting studies over single-study findings or proprietary blends. Huberman has stated that he chooses doses based on the literature, not marketing claims, and he regularly revisits recommendations as new evidence emerges. This evidence-centered approach means his supplement list is relatively modest compared to many biohacker protocols.

Core Supplements: Mechanism and Dosing

The foundation of Huberman's stack includes a small number of compounds taken consistently, with additional agents added for specific contexts (travel, high stress, intensive work periods).

Magnesium for Sleep and Neural Function

Magnesium-L-threonate (sold as Magtein) is a formulation Huberman has emphasized for its ability to cross the blood-brain barrier, potentially supporting synaptic plasticity and learning. However, Huberman also recommends other magnesium forms—glycinate for general relaxation and muscle tension, and threonate specifically for cognitive enhancement. The typical dosing recommendation is 140 mg of elemental magnesium in the threonate form, taken in the evening (1–2 hours before bed). He has cited research on magnesium's role in NMDA receptor regulation and sleep spindle formation, both implicated in memory consolidation.

Standard magnesium glycinate doses range from 200–400 mg elemental magnesium in the evening. Magnesium supplementation is generally well-tolerated, though excessive intake can cause loose stools. Individuals on bisphosphonates or certain antibiotics should space magnesium supplementation at least 2 hours apart from those medications.

Omega-3 Polyunsaturated Fatty Acids

Omega-3 fatty acids, particularly docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), are emphasized for brain health and reduction of neuroinflammation. Huberman has highlighted DHA's concentration in the retina and prefrontal cortex, both areas critical to focus and visual processing. His recommendation typically ranges from 1,000–2,000 mg of combined EPA+DHA daily, sourced from algae or fish oil. He prefers fish oil when possible due to better bioavailability, though algae-based omega-3s are suitable for vegetarians.

The evidence supporting omega-3 supplementation for cognitive support is solid, with population studies and some intervention trials showing associations between higher DHA intake and better attention and processing speed. Doses above 2,000 mg daily may have mild anticoagulant effects, so individuals on blood thinners should inform their clinician before supplementing.

Vitamin D3

Vitamin D3 (cholecalciferol) is a hormone-like compound involved in immune regulation, mood, and circadian rhythm entrainment. Huberman recommends testing baseline 25-hydroxyvitamin D levels (optimal range approximately 30–100 ng/mL) before supplementing. Doses typically range from 1,000–4,000 IU daily, adjusted based on blood work and sun exposure. He emphasizes that excessive vitamin D supplementation (>10,000 IU daily long-term) without medical supervision can lead to hypercalcemia.

Vitamin D is fat-soluble and best absorbed with food containing fat. Morning dosing aligns with circadian function. The evidence for vitamin D's role in mood, immune health, and bone metabolism is well-established; however, large intervention trials have produced mixed results for disease prevention, suggesting vitamin D supplementation is most beneficial when baseline status is deficient.

Sleep-Specific Compounds

Because Huberman views sleep as the foundation for all other cognitive and physical performance, several supplements are specifically timed for evening use.

L-Theanine

L-theanine, an amino acid found in green tea, is proposed to promote relaxation without sedation by increasing GABA and promoting alpha-wave activity in the brain. Huberman's recommendation is typically 100–200 mg taken 30–60 minutes before bed. The evidence base is moderate: small trials suggest L-theanine reduces time to sleep onset and improves sleep quality in some individuals, but results are not universal. It is well-tolerated and non-habit-forming.

Apigenin

Apigenin is a flavonoid found in chamomile and other plants, proposed to bind benzodiazepine receptors in the brain and promote sleep. Huberman has cited a small trial suggesting 50 mg of apigenin improved sleep latency and quality. Evidence is preliminary, but the compound is generally well-tolerated at recommended doses. It should not be combined with sedating medications without medical guidance.

Glycine

Glycine, an amino acid and inhibitory neurotransmitter, is studied for its role in sleep initiation and thermoregulation. A small trial showed 3 g of glycine taken before bed reduced sleep latency and improved subjective sleep quality. Huberman sometimes recommends this dose in the evening, particularly for individuals with difficulty falling asleep. Glycine is well-tolerated at these doses and does not have significant drug interactions.

Focus and Energy Support

For daytime cognitive performance and sustained attention, Huberman's recommendations diverge from high-dose stimulants toward compounds with subtler mechanisms.

Creatine Monohydrate

Creatine monohydrate is studied not only for muscle performance but also for cognitive function and mood. It works by replenishing ATP (energy) in brain and muscle cells, with potential benefits for working memory and reasoning. Huberman's recommendation is typically 5 g daily (no loading phase needed) taken consistently. The evidence for cognitive benefit is modest but consistent; a meta-analysis of creatine supplementation found small positive effects on reasoning and working memory, particularly in vegetarians and people under sleep deprivation.

Creatine is one of the most thoroughly researched supplements, with an excellent long-term safety profile. It does increase body weight slightly (water retention in muscle) and should be taken with adequate hydration and consistent daily doses to maintain muscle creatine saturation.

L-Tyrosine

L-tyrosine is a precursor to dopamine and noradrenaline, proposed to support focus and motivation, particularly under stress or sleep debt. Huberman recommends 500–1,000 mg taken in the morning, typically 30–60 minutes before work or a cognitively demanding task. The evidence is mixed: some small trials show acute improvements in attention and working memory under stressful conditions, but other studies show minimal effect in rested individuals. L-tyrosine is generally well-tolerated, though it may increase blood pressure or anxiety in sensitive individuals at high doses.

Stress Resilience and Mood

Several supplements in Huberman's protocol target the physiological stress response and emotional resilience.

Ashwagandha

Ashwagandha (Withania somnifera) is an adaptogenic herb studied for its effects on cortisol, anxiety, and stress-related cognitive impairment. Huberman's recommended dose is typically 500–1,000 mg daily of a standardized extract (2–3% withanolides). Several moderate-sized trials have shown ashwagandha reduces self-reported anxiety and cortisol levels, with improvements in sleep quality and stress resilience. Onset of effect is typically 2–4 weeks. Some individuals report mild sedation, particularly with higher doses, which can be beneficial in the evening but problematic if taken in the morning.

Ashwagandha should not be combined with sedating medications or taken by individuals who are pregnant without medical guidance. It may also interact with thyroid medications in sensitive individuals.

Inositol and Choline

Inositol (particularly myo-inositol and D-chiro-inositol) and choline are involved in cell signaling and neurotransmitter synthesis. Evidence for their independent supplementation in otherwise healthy individuals is limited, though they may support mood and cognition when deficient. Huberman mentions these compounds less prominently than foundational vitamins and magnesium.

Practical Implementation: Timing and Sequencing

A key insight from Huberman's approach is that supplement timing matters. Here is a typical daily structure:

This timeline is not rigid. Many compounds (especially vitamin D, omega-3s, and creatine) can be taken at any time of day as long as they are taken consistently. Evening compounds should be taken after any intense blue-light exposure (screens, work) to avoid disrupting melatonin production.

Personalization and Individual Response

Huberman emphasizes that this stack is a starting template, not a prescription for everyone. Individual factors that influence supplementation needs and responses include:

Huberman recommends tracking sleep quality, energy, focus, and mood for 2–4 weeks after adding or removing any supplement to gauge individual responsiveness. He also suggests revisiting supplementation quarterly or when life circumstances change significantly.

Safety, Drug Interactions, and When to Consult a Clinician

Overall, the supplements in Huberman's stack have favorable safety profiles, but individual caution is warranted:

Anyone with a chronic health condition, on prescription medications, or planning pregnancy should discuss supplementation with a clinician before starting, even if individual compounds are generally safe. Some supplements interact with specific medications in ways that are not widely known.

How Huberman's Stack Compares to Other Approaches

Many biohacker and performance-optimization communities promote larger supplement stacks with exotic ingredients (e.g., racetams, nootropic compounds, peptides). Huberman's stack is notably conservative, prioritizing: