Compare experts › Layne Norton vs Mark Hyman

Layne Norton vs Mark Hyman

Layne Norton (nutrition scientist, powerlifter) and Mark Hyman (physician, functional medicine) side by side: how they train, eat, supplement and sleep, how strong the evidence is, and how to build a plan from either or both.

Build a plan from bothSee the protocols
Words explained (8)
Intervals
Short hard efforts with easy recovery in between, such as 30 seconds fast, 90 seconds slow.
Hypertrophy
Muscle growth.
Mobility
Moving your joints freely through their full range.
Leucine
A building block of protein that helps switch on muscle building. Meat, fish, eggs, dairy and soy are rich in it.
Creatine
A well-studied supplement that supports strength and muscle.
Omega-3 (EPA, DHA)
Healthy fats found mostly in oily fish such as salmon, herring and sardines.
Polyphenols
Natural plant compounds in foods such as berries, tea, coffee, cocoa and olive oil.
Fibre
The part of plant foods you don't digest. It feeds healthy gut bacteria and keeps you full.

At a glance

MeasureLayne NortonMark Hyman
BackgroundNutrition scientist, powerlifterPhysician, functional medicine
Training split65% strength · 25% aerobic · 10% intervals · 0% mobility30% strength · 25% aerobic · 30% intervals · 15% mobility
Signature habitTiered supplementsPegan diet
Protein1.6–2.2 g/kg30–50 g shake after training
Training styleNumbers-firstFood as medicine
Overall evidenceStrongMixed
FollowingInstagram 1.2M · YouTube 439KInstagram 3.8M · YouTube 1.5M

Training splits are our estimates from each expert’s published routine. Following checked October 2026.

The key differences

  • Norton puts more of the week into strength: about 65% against 30%.
  • Hyman puts more of the week into intervals: about 30% against 10%.
  • Hyman puts more of the week into mobility and stability: about 15% against 0%.
  • In plans in their style, both use 1-minute intervals for hard sessions.
  • We rate the evidence behind Norton's protocol higher: strong, against mixed for Hyman.
  • Supplements that go into a plan: Norton, creatine monohydrate, whey protein, caffeine before training; Hyman, protein shake with creatine after training, omega-3 fish oil. Prescription items and personal stacks stay out of every plan.
  • Only Hyman has a mobility or movement routine of their own.

Protocols side by side

Each line is rated for the evidence behind it. “Doctor only” items never go into a plan.

Training

Layne Norton

  • Lift weights consistently, year after year, and take sets close to failureSome evidence
  • Exercise improves health markers even when it does not change your weightStrong evidence
  • Track daily steps while dieting: everyday movement tends to drop as calories fallSome evidence
  • His PHAT programme: 5 days a week, two heavy 'power' days plus three higher-rep hypertrophy daysPersonal habit

Mark Hyman

  • Strength training 3–4 times a week, about 30 minutes, mainly resistance bands and moderate weightsStrong evidence
  • Aerobic or interval training 4–6 days a week, about 30 minutes (cycling, tennis, hiking, swimming)Strong evidence
  • Yoga a couple of times a week plus a little stretching most daysSome evidence
  • Avoids very heavy lifting as he ages to limit injury riskPersonal habit
  • Hypoxia (low-oxygen) training with a machine or maskPersonal habit

Eating

Layne Norton

  • Track calories and protein; food labels can be ~20% off, but consistent tracking still shows your true intake over timeSome evidence
  • Weigh yourself each morning and compare weekly averages, not single daysSome evidence
  • Protein about 1.6 g/kg a day; up to ~2.2 g/kg when dieting or very leanStrong evidence
  • Choose a diet style you can sustain; low-carb and low-fat work equally well with calories and protein matchedStrong evidence
  • Fibre about 15 g per 1,000 kcalSome evidence
  • Seed oils are fine: replacing saturated fat with polyunsaturated fat lowers LDL and heart riskSome evidence

Mark Hyman

  • Pegan diet: about 75% of the plate from plants, mostly non-starchy vegetablesStrong evidence
  • Cut sugar, refined flour and ultra-processed foodsStrong evidence
  • 1–2 cups of cruciferous vegetables (broccoli, cabbage etc.) a daySome evidence
  • Healthy fats from olive oil, avocado, nuts, seeds and small oily fishStrong evidence
  • Avoid gluten and most dairy, even without intolerancePersonal habit
  • Daily overnight fast of 12–16 hoursSome evidence

Supplements

Layne Norton

  • Tier 1 – creatine monohydrate 3–5 g a day; loading is optional; timing does not matterStrong evidence
  • Tier 1 – whey protein 20–40 g per serving (about 2–3 g leucine) to help reach daily proteinStrong evidence
  • Tier 1 – caffeine 3–6 mg/kg about 45–60 min before training; lower doses still help alertnessStrong evidence

Mark Hyman

  • Protein shake after training: 30–50 g whey (goat) plus 5 g creatineStrong evidence
  • Vitamin D, fish oil, a multivitamin and magnesium at nightSome evidence
  • NMN (about 900 mg a day), urolithin A, quercetin, curcumin and similar 'longevity' compoundsPersonal habit
  • His own branded gut supplement (prebiotics, probiotics, polyphenols)Personal habit

Sleep & recovery

Layne Norton

  • Avoid caffeine late in the day; it can harm sleep even if you fall asleep normallyStrong evidence
  • Carb timing matters little on average; if carb-heavy meals make you sleepy, move themNote
  • Poor sleep and unmanaged stress are bigger problems than small nutrition detailsNote

Mark Hyman

  • 7–8 hours of sleep with a regular bedtime around 10 pmStrong evidence
  • Dark, quiet bedroom with eye mask and earplugsSome evidence
  • Blue-light-blocking glasses in the eveningPersonal habit
  • Steam or sauna and cold plunge most daysPersonal habit
  • Red light therapy at homePersonal habit

Stress & mind

Layne Norton

No specific guidance in what we reviewed.

Mark Hyman

  • Meditation once or twice a day plus breathworkSome evidence
  • As much time in nature as possibleSome evidence
  • Regular time with friends and familySome evidence
  • Regular massagePersonal habit

Weak spots to know

Layne Norton

  • Commercial ties: he co-founded Outwork Nutrition, which sells whey protein and products containing creatine — overlapping with his Tier 1 list — and co-founded the paid Carbon Diet Coach app and the BioLayne coaching business. He has also disclosed past research funding from the National Dairy Council, the National Cattlemen's Beef Association and the Egg Board.
  • Reverse dieting, which he helped develop and popularise, had no published controlled trials supporting it as of 2021; its use rests mainly on coaching experience.
  • His relaxed view of seed oils is contested by others in the health space. On The Drive (2026), Peter Attia presented the strongest case against seed oils for a debate after the booked guest declined, while saying his own view is close to Norton's; debate continues over older trials and LDL oxidation.

Mark Hyman

  • Functional medicine as a field lacks randomised trial evidence; surgeon and blogger David Gorski (Science-Based Medicine, 2014; Respectful Insolence, 2019) argues its useful parts (diet, exercise, sleep) are not unique and its unique parts (broad testing, supplements, 'detox') are not proven.
  • A 2021 Red Pen Reviews analysis of Eat Fat, Get Thin scored its scientific accuracy 1.2 out of 4, finding the claim that saturated fat does not cause heart disease conflicts with most controlled studies.
  • Commercial ties are large: he co-founded and is chief medical officer of Function Health (direct-to-consumer lab testing) and sells supplements through his own online shop; nutrition scientist Adrian Chavez (Katie Couric Media, 2026) noted one of his supplement stacks supplies 7,000 IU of vitamin D a day, above the usual 4,000 IU upper limit.

Build a plan from Norton, Hyman or both

Your free plan shows a week of gym sessions, cardio, a day of eating, supplements and mobility, fitted to your age, time and health.

Plan in Norton's stylePlan in Hyman's styleMix both

Questions

What is the main difference between Layne Norton and Mark Hyman?

Their training split differs most in strength: Norton about 65%, Hyman about 30% (our estimate from their published routines). Norton's signature habit is Tiered supplements; Hyman's is Pegan diet.

How much protein do Norton and Hyman recommend?

Norton: 1.6–2.2 g/kg. Hyman: 30–50 g shake after training.

Whose advice has stronger evidence?

We rate the evidence behind Norton's protocol higher: strong, against mixed for Hyman.

Do Norton and Hyman disagree?

Not directly in what we reviewed. Their differences are in emphasis: norton puts more of the week into strength: about 65% against 30%.

Can I combine Norton and Hyman?

Yes. In Build my mix you choose one expert per area, for example one for strength and another for eating. Your free plan shows the result straight away.

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Full sources are on each profile: Layne Norton · Mark Hyman. Reviewed October 2026.