Food first, supplements second, with one micronutrient caveat

The Short Version

Supplements come second. Peter Attia, Lisa Mosconi and Mark Hyman all say that no pill makes up for poor eating, sleep, exercise or emotional health, and Attia's image makes the point: supplements are the question of whether the Titanic served lobster or steak, while the basics decide where the ship was heading relative to the iceberg [3][1][2]. Rhonda Patrick adds the caveat. Deficiencies in vitamin D, magnesium and marine omega-3s are common enough, and the effects large enough, that she thinks they are worth measuring and correcting directly [4]. The two positions are closer than they sound: Attia himself takes vitamin D, fish oil and three forms of magnesium [3], and Patrick gets most of her magnesium from leafy greens and her omega-3s partly from fish [4]. Together they point to an order: fix the foundations, then test for and fill the specific gaps.

Table of contents

What They Said

Peter Attia: the Titanic's heading comes first

Attia's conversation with Andrew Huberman is mostly a careful takedown of one heavily marketed supplement category, the NAD pathway (NR, NMN and NAD infusions), and it ends with a general rule about where supplements belong [3].

His framework for longevity comes in layers. First come the unavoidable behaviors: everyone has to eat, sleep and move, and can do each well or badly [3]. Second are molecules aimed at specific diseases. Third are geroprotective molecules that target the hallmarks of aging. Fourth is how aggressively you combine them [3]. Under all of it, he says, sits emotional health, because without it the hard work of the first layer becomes nearly impossible [3].

The NAD story shows why he is wary of pills sold on mechanism. The chain behind NAD supplements, he says, assumes that sirtuins matter, that they relate to caloric restriction (they do not), that yeast findings apply to humans, that sirtuin activators work, and finally that raising NAD in a tightly regulated system helps at all [3]. "It's okay to take leaps of faith. You just have to know you're taking a leap of faith." [3] Resveratrol followed the same arc. Its one positive mouse study used a bizarre model of fatty liver disease at doses equal to drinking your body weight in wine, and when the rigorous Interventions Testing Program tested it, Attia says, it "found that it did categorically nothing." [3] The same program found no lifespan or healthspan benefit for NR, even at very high doses [3].

The human trials he describes were thin. A roughly 100-person trial of NR plus pterostilbene in fatty liver disease found no difference in liver fat, weight, inflammation or glucose; only a subgroup showed a drop from 20% to 15% liver fat, still three times the threshold for fatty liver [3]. A study of NMN found a statistically but not clinically meaningful improvement in glucose disposal. "Never confuse statistical significance with clinical significance," he says [3]. Of feeling awful during an IV NAD drip, as Huberman described, he says: "The fact that something feels so awful shouldn't be used as an explanation for why it's doing good physiologically." [3] Asked what two hours of exercise would do compared with a $300 to $1,000 NAD drip, he says the benefit would be significantly greater [3]. His verdict on NAD supplements and lifespan: "The answer appears to be unambiguously no at this point." [3]

Then comes the line that gives this Insight its first half. Of everything discussed, from NR and NMN to Theracurmin and magnesium, Attia says he would put it "in the category of, was the Titanic serving lobster or steak?" [3] And: "Exercise, sleep, nutrition, emotional health is the question of what was the heading of the Titanic?" [3] He does not dismiss supplements entirely: "I'm not saying those things don't matter, but just put them in the context of the direction the Titanic is going." [3] On energy specifically, he cannot imagine any supplement or drug, rapamycin included, rivaling sleep, exercise and nutrition, even though all three are hard for busy adults [3].

What Attia actually takes is revealing, because it looks a lot like Patrick's list. He takes EPA and DHA fish oil capsules, 5,000 IU of vitamin D, and magnesium in three forms: magnesium L-threonate (with ashwagandha) for sleep, Slow-Mag and magnesium oxide [3]. "So I take magnesium in three forms," he says, and adds: "I'm big on magnesium, right?" [3] He takes methylfolate and methyl B12 for a documented reason: "So we know that if you take methyl folate and methyl B12, you're going to lower homocysteine. That's abundantly clear." [3] He avoids B6 because "there's probably some evidence that over supplementing vitamin B is problematic, especially B6" [3], which can cause nerve damage. He also takes Theracurmin, based on reasonable evidence for cognitive function in mild cognitive impairment, 5 grams of creatine, LMNT electrolytes (he discloses he is an investor), AG1 and three Pendulum products including Akkermansia [3]. The pattern: he chooses specific supplements for specific, measurable reasons and rejects the ones sold on a chain of assumptions. He also names the prescription drugs he takes for specific diseases, including a PCSK9 inhibitor, bempedoic acid and an SGLT2 inhibitor, plus rapamycin for its possible anti-aging effect [3].

He applies the same skepticism to testing. A motion-capture test once declared him 22 years old: "There is so much nonsense in this type of testing." [3] The standard he wants any test to meet is whether it predicts remaining years of life better than chronological age [3]. That matters for the second half of this Insight, which leans on testing to decide what to fill.

Andrew Huberman: supplements as insurance, not necessity

Huberman takes more supplements than Attia, including NMN and sometimes NR despite Attia's verdict [3]. But his framing lands in the same place. "So I do view supplements, I think, through the appropriate lens, which is that they are indeed a supplement. They are not necessary." [3] Many serve "as an insurance policy or to augment mental and physical health," he says, "But I don't think you need them." [3] In his sponsor read for AG1, he describes it as "a nutritional insurance policy meant to augment, not replace, quality food." [3] (That line is an advertisement, and Huberman is paid to read it, but it states the same order.) He also notes a general consensus that whatever diet you follow, "you should get most of your food from unprocessed or minimally processed sources" [3].

His own list overlaps heavily with Patrick's: liquid fish oil for over a gram of EPA a day ("I make sure I get above one gram per day of EPA"), vitamin D3, methyl B12, magnesium threonate, creatine, AG1 and more [3]. He closes by agreeing completely with Attia: exercise, sleep, nutrition and emotional health, "Those are the critical four." [3] Asked whether NAD supplements are worth it for extending life, both say no [3].

Lisa Mosconi: food works better than the pill version

Mosconi, a neuroscientist focused on women's brain health and Alzheimer's prevention, addresses supplements directly [1]. Supplements can help if you are deficient, she says, but they are not a replacement for food [1]. Antioxidants such as vitamin C or E are far more effective in food than in isolated pills, and nutrients from food provide combined benefits and multiple isoforms, meaning different chemical forms of the same nutrient, that supplements do not contain [1].

Her food list is specific. She names berries (blackberries, goji berries and mulberries) for antioxidants and flavonoids; dark leafy greens; omega-3-rich fats from salmon, sardines and herring or from flaxseed oil, hemp seeds, chia seeds and walnuts; phytoestrogens from flaxseeds, sesame seeds, chickpeas, soy, dried figs and apricots; and water with electrolytes [1]. She points to brain scans in her lab: people eating Western, processed diets show brain shrinkage and more plaque, visible by age 50, while those on Mediterranean-style, plant-rich diets keep larger brain volumes [1]. "Your brain literally shrinks on a processed food diet—and plaques can form decades before symptoms appear." [1]

She also treats hydration as a foundation that people skip: "Just a 2–4% loss in hydration can impair memory and concentration." [1] She recommends warm lemon water in the morning and tap water that keeps its electrolytes, or filtered spring water [1]. And she includes the second half of this Insight's order in her daily habits: track what you eat and get bloodwork regularly to make sure your levels are where they should be [1].

Mark Hyman: food is 80% of the game

Hyman, the functional medicine doctor, ranks his own longevity priorities explicitly [2]. Food comes first, at 80% of the longevity game. Then exercise, especially strength training and cardio; then sleep and meditation; then connection, since love and community are as healing as any supplement [2]. Only after all that come advanced tools such as ozone therapy, peptides, hyperbaric oxygen and NAD, which he calls the 20% add-ons, not the foundation [2]. "Love is medicine too." [2]

His view of food as medicine is specific. He names Himalayan Tartary buckwheat for plant compounds that he says kill zombie immune cells and fight aging and inflammation, green tea for binding heavy metals, cruciferous vegetables for boosting detox enzymes like glutathione, and pomegranate and cranberry for feeding the gut bacterium Akkermansia [2]. He also stresses personalization. Different bodies need different things: a vegan might feel depleted after a few years, and a stressed vegetarian might need more protein and less sugar [2]. So he tells people to get lab tests and notice how they feel after eating [2]. "Listen to your body—not the dogma." [2] His rule for what not to eat: "If you wouldn't keep it in your kitchen, don't put it in your body." [2]

Rhonda Patrick: some gaps are common enough to fix directly

Patrick, a biomedical scientist who did postdoctoral work on micronutrients and aging with Bruce Ames, makes the case for directly correcting three common shortfalls [4].

Vitamin D. She calls it a steroid hormone that switches genes on or off in more than 5% of the protein-coding genome, affecting immunity, blood pressure, bone and more [4]. She found vitamin D response elements on the gene for the enzyme that makes serotonin in the brain [4]. About 70% of Americans have inadequate levels (below 30 ng/mL), she says, while mortality analyses suggest 40 to 60 ng/mL is ideal [4]. Some people are at much higher risk. A University of Chicago study found people with darker skin needed about six times as long in the sun to make the same amount; older people make it less efficiently; and many common genetic variants impair conversion [4]. Studies that use those genetic variants as a natural experiment link them to higher overall, respiratory and cancer mortality and to multiple sclerosis [4]. Her rule of thumb: without those variants, 1,000 IU raises blood levels by about 5 ng/mL, so going from 20 to 40 takes about 4,000 IU [4]. She takes 5,000 IU a day and sits around 50 ng/mL [4]. Huberman describes a family member who needed 30,000 IU a day just to reach normal [4]. Patrick also cites a small study in which 4,000 IU a day reversed epigenetic aging by about three years in deficient African Americans [4].

Magnesium. About 40% of Americans don't get enough, she says, and magnesium is needed to make and use ATP, to activate vitamin D, and for DNA repair enzymes [4]. She calls insufficiency an "insidious" kind of daily damage you can't see in the mirror [4]. Notably, her first answer is food: magnesium sits at the center of the chlorophyll molecule, so dark leafy greens such as kale, spinach, chard and romaine are her main source [4]. She adds a modest supplement of about 130 to 135 mg, a dose chosen to avoid gut upset, favoring magnesium malate by day and a threonate powder before bed [4]. Huberman takes threonate or bisglycinate before sleep and malate during the day, while admitting the human evidence for threonate's brain effects is still limited [4].

Marine omega-3s. The omega-3s that matter are EPA and DHA from fatty cold-water fish; the plant form, ALA, from walnuts and flaxseed, converts poorly, sometimes only about 5%, depending on genetics and estrogen [4]. She recommends wild Alaskan salmon, sardines and salmon roe, and microalgae oil for vegans and vegetarians [4]. Her strongest numbers come from the omega-3 index, the omega-3 level in red blood cells, which reflects about 120 days of intake [4]. The typical American sits around 5% and Japan around 10 to 11%; in Bill Harris's analysis of Framingham data, people at 4% or lower had about five years shorter life expectancy than people at 8% [4]. Smokers with a high index had the same life expectancy as non-smokers with a low one [4]. Getting from about 4% to 8% took about two grams a day of supplements [4]. She takes four grams a day, sits at almost 16%, and says "two grams or more is the magic number". [4] Huberman takes about two grams of EPA a day, citing studies in which two to four grams of EPA compared well with SSRIs for depression [4].

Patrick's case for supplements comes with quality control. On fish oil: "nothing is ever what it says on the bottle". [4] She checks third-party IFOS testing for contaminants and oxidation, looks for a total oxidation (TOTOX) score under 10, ideally under 6, avoids krill oil as usually low-dose and often rancid, prefers triglyceride-form fish oil over cheaper ethyl esters, and says "please keep your fish oil in the refrigerator". [4] Even sardines need care: Joe Rogan found high mercury after eating them daily, so brand matters [4]. And her overriding rule is to measure: "you can't know what you don't measure", so test before and after supplementing [4].

Patrick is not a pills-first person either. Most of her conversation is about food and challenges: broccoli sprouts, which contain up to 100 times more sulforaphane than broccoli; adding about a gram of mustard seed powder to cooked broccoli, which increased sulforaphane about fourfold in one study; plus cold exposure, high-intensity intervals and sauna [4]. She and Huberman both stress that vitamin D supplements do not replace sunlight [4].

Where They Agree, and Where They Don't

Agreement on the order. Every source puts food and behavior first. Attia's Titanic analogy [3], Huberman's "critical four" and his view that supplements "are not necessary" [3], Mosconi's point that supplements are not a replacement for food [1], and Hyman's 80/20 split [2] all say the same thing. Even Patrick gets her magnesium mainly from greens and her omega-3s from fish, sunlight for vitamin D, and sulforaphane from sprouts and broccoli [4].

Agreement on these three nutrients, in practice. This is the most interesting finding. The "debate" framing suggests Attia doubts supplements and Patrick promotes them, but Attia takes all three of Patrick's priorities: fish oil, 5,000 IU of vitamin D (the same dose Patrick takes), and three forms of magnesium [3][4]. Huberman takes all three too [3][4]. Mosconi's line that supplements help if you're deficient [1] is Patrick's argument in one sentence. What Attia rejects is a different kind of supplement: one sold on a long mechanistic story without human outcome data, like NR, NMN or resveratrol [3].

Where the emphasis differs.

How common the gaps are. Patrick's numbers imply that many people are deficient: about 70% low in vitamin D, about 40% short on magnesium, and a typical omega-3 index around 5% [4]. If that's right, "filling gaps" is not a niche step but something most people will need. Attia, Mosconi and Hyman don't dispute these numbers; they simply don't discuss them, and their emphasis stays on the foundations [1][2][3].

Food versus pill for the same nutrient. Mosconi argues food forms work better than isolated nutrients, at least for antioxidants like vitamins C and E, because food brings multiple forms and combined effects [1]. Patrick agrees for magnesium (greens first) but argues that for omega-3s, reaching an index of 8% took about two grams a day of supplements [4], and for vitamin D, darker skin, age and genes can make sun and food insufficient [4]. Mosconi lists plant omega-3 sources such as flaxseed, chia and walnuts [1]; Patrick warns that the plant form converts poorly, sometimes only about 5% [4]. For vegans and vegetarians, Patrick's answer is microalgae oil [4].

How much to trust the evidence. Attia's standard is strict: human outcome data, clinical rather than merely statistical significance, and replication in rigorous programs [3]. Patrick's case for her three nutrients rests on a mix of human data, observational analyses such as the Framingham omega-3 index work, genetic studies and mechanism [4]. Some of her examples are small, like the epigenetic aging study, and Huberman admits the human evidence for magnesium threonate's brain effects is limited [4]. Neither source applies Attia's full NAD-style scrutiny to the three nutrients, so the reader should note that they are better supported than NAD precursors in these conversations, not proven by the same standard.

Personal regimens versus general advice. Huberman takes NMN despite Attia's verdict [3], and both men take long lists of supplements [3]. Hyman lists advanced tools like NAD and ozone among his own add-ons [2], which puts him closer to Huberman than to Attia on NAD. These are personal choices by people with disposable income, as Huberman says of himself [3], not recommendations.

Why It Works

Why foundations come first. Attia's reasoning is about size of effect. Two hours of exercise would do significantly more than an NAD drip [3], and he cannot imagine any pill rivaling sleep, exercise and nutrition for energy [3]. Emotional health comes first because without it the other behaviors become nearly impossible [3]. Mosconi's lab scans show processed diets shrinking the brain visibly by 50 [1], an effect no supplement in these sources claims to reverse. And many supplement stories fail when tested in humans or in rigorous animal programs, as with resveratrol and NR [3].

Why food beats isolated nutrients. Mosconi says food gives synergistic benefits and multiple isoforms not found in supplements, which is why antioxidants work better from food [1]. Hyman adds that specific foods carry specific plant compounds, such as those in buckwheat, green tea and cruciferous vegetables [2]. Patrick adds a hands-on example: cooked broccoli loses its sulforaphane-making enzyme to heat, but mustard seed powder restores it, increasing sulforaphane about fourfold [4].

Why these three gaps matter. Patrick gives mechanisms for each [4]:

• Vitamin D acts like a hormone, regulating more than 5% of protein-coding genes, including the gene for the enzyme that makes serotonin in the brain. Mice with impaired vitamin D receptors age rapidly.
• Magnesium is needed to make and use ATP, to activate vitamin D, and for DNA repair. Low intake means small daily damage that accumulates unseen. Note that magnesium and vitamin D depend on each other.
• Omega-3s help resolve inflammation through resolvins and specialized pro-resolving mediators. In one study, injecting a bacterial toxin caused depressive symptoms, and about two grams of EPA beforehand blunted them. Inflammation suppresses serotonin release, which EPA helps counter, and DHA shapes neuron membrane fluidity, influencing serotonin and dopamine receptors. Phospholipid DHA enters the brain through a specific transporter, which may matter for the roughly 25% of people carrying the APOE4 variant linked to Alzheimer's risk.

Why measure. Patrick's point that you can't know what you don't measure [4] follows from how varied the gaps are: darker skin needs about six times the sun exposure, older people make less vitamin D, genes vary, and one person needed 30,000 IU a day to reach normal [4]. The omega-3 index gives a picture of the last 120 days rather than the last meal [4]. Mosconi and Hyman both recommend regular labs for the same reason [1][2]. Attia offers a warning about tests, though: many are noisy, and the useful ones predict real outcomes [3].

Where It Applies, and Where It Doesn't

The order applies to almost everyone. If sleep, exercise, food and emotional health are in poor shape, those are where the gains are [3][2]. Someone eating a processed Western diet should change that before buying anything [1][2].

The micronutrient caveat applies most to certain groups.

• People with darker skin, older adults and people with little sun exposure, who make less vitamin D [4].
• People who eat few leafy greens, for magnesium [4].
• People who rarely eat fatty cold-water fish, and vegans and vegetarians, who rely on plant omega-3s that convert poorly and may need microalgae oil [4].
• Anyone whose blood work shows a gap. Mosconi's position that supplements help if you're deficient [1] makes testing the entry point.
• People with specific measured issues, such as Attia's use of methylfolate and methyl B12 to lower homocysteine [3].

It doesn't apply to:

• Supplements sold on mechanism alone. NAD precursors, resveratrol and similar products fail Attia's standard, and he and Huberman both say no to NAD for extending life [3].
• More is not better. Attia avoids B6 because oversupplementing it can damage nerves [3]. Patrick keeps her magnesium dose moderate to avoid gut upset [4]. She says vitamin D toxicity is extremely hard to reach [4], but she still insists on testing before and after.
• Supplements as a substitute for the source. Vitamin D pills don't replace sunlight [4], and antioxidant pills don't replace fruits and vegetables [1].
• Poor-quality products. Rancid or mislabeled fish oil may not deliver what the label says [4].

People with medical conditions, those who are pregnant or those taking medications should check doses and interactions with a doctor or registered dietitian before starting any of these.

What To Do With It

1. Audit the four foundations first. Rate your exercise, sleep, nutrition and emotional health honestly, since Attia and Huberman call these "the critical four" and the Titanic's heading [3]. Fix the weakest one before adding any pill.

2. Build your plate around whole foods. Get most of your food from unprocessed or minimally processed sources [3], and cut the processed food that Mosconi links to brain shrinkage [1]. Include berries, dark leafy greens, oily fish or plant omega-3 sources, and phytoestrogen foods such as flaxseed and chickpeas [1], plus cruciferous vegetables [2][4].

3. Get your nutrients from food where you can. Use kale, spinach, chard and romaine as your main magnesium source [4]; eat wild salmon, sardines or salmon roe for EPA and DHA [4]; get sensible sun for vitamin D [4]; and eat antioxidants as food, not pills [1].

4. Drink enough. Mosconi says a 2 to 4% loss in hydration can impair memory and concentration [1]. Start the day with water, and choose water that keeps its electrolytes [1].

5. Test before you supplement. Ask for a vitamin D blood test, and consider an omega-3 index test, which reflects about 120 days of intake [4]. Mosconi and Hyman both recommend regular bloodwork to check your levels [1][2].

6. Fill documented gaps with Patrick's rules of thumb, then retest. For vitamin D, about 1,000 IU raises blood levels by about 5 ng/mL, with 40 to 60 ng/mL as her target range [4]. For omega-3s, about two grams a day moved people from roughly 4% to 8% on the index [4]. For magnesium, a modest 130 to 135 mg on top of greens avoids gut upset [4]. Retest to see whether it worked [4].

7. Buy quality and store it properly. Check IFOS results for fish oil, aim for a TOTOX score under 10 (ideally under 6), choose triglyceride-form oil or take ethyl esters with food, and keep fish oil in the refrigerator [4]. Vegans and vegetarians can use microalgae oil [4].

8. Be skeptical of mechanism-only products. Before buying a longevity supplement, ask whether it has human outcome data showing a clinically meaningful effect, as Attia does; NR, NMN, NAD drips and resveratrol don't meet that bar in his reading [3]. Don't mistake an unpleasant sensation for proof that something works [3].

9. Avoid megadoses of single vitamins you haven't tested for. Attia skips B6 because of nerve-damage risk from oversupplementing [3].

10. Revisit as evidence changes. Attia keeps "the right to change my mind for the rest of my life in the presence of new data" [3]; do the same with your own regimen, and review it with your doctor, especially if you have a health condition or take medication.

Sources

1. Optimize Your Brain Health & How to Prevent Alzheimer's with Dr. Lisa Mosconi · The School of Greatness
2. How Food Heals or Harms Your Body, Aging & Mental Health with Dr. Mark Hyman · The School of Greatness
3. Dr Peter Attia Supplements For Longevity Their Efficacy · Huberman Lab
4. Dr Rhonda Patrick Micronutrients For Health Longevity · Huberman Lab