Compare experts › Rhonda Patrick vs Mike Israetel

Rhonda Patrick vs Mike Israetel

Rhonda Patrick (biomedical scientist) and Mike Israetel (sport physiologist (phd)) 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 (10)
Zone 2
Steady cardio at a pace where you can still talk in full sentences, but not sing.
VO2 max
The most oxygen your body can use in hard exercise. A good measure of fitness; higher is better.
Intervals
Short hard efforts with easy recovery in between, such as 30 seconds fast, 90 seconds slow.
4 × 4
Four rounds of 4 minutes hard with 3 minutes easy in between. Also called Norwegian intervals.
Hypertrophy
Muscle growth.
Mobility
Moving your joints freely through their full range.
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.
Time-restricted eating
Eating all your meals within a set window of the day, for example 8am to 6pm.
Mitochondria
The parts of your cells that turn food and oxygen into energy.

At a glance

MeasureRhonda PatrickMike Israetel
BackgroundBiomedical scientistSport physiologist (PhD)
Training split30% strength · 40% aerobic · 30% intervals · 0% mobility65% strength · 25% aerobic · 5% intervals · 5% mobility
Signature habitSauna 4–7 × a week2 × 30 min, close to failure
Protein~1.6 g/kgNo fixed target
Training styleInterval-heavyMuscle-building
Overall evidenceStrongSolid
FollowingInstagram 1.2M · YouTube 731KYouTube 3.9M

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

The key differences

  • Israetel puts more of the week into strength: about 65% against 30%.
  • Patrick puts more of the week into aerobic base (zone 2): about 40% against 25%.
  • Patrick puts more of the week into intervals: about 30% against 5%.
  • In plans in their style, Patrick's hard sessions are 4-minute intervals (Norwegian 4 × 4); Israetel's are 1-minute intervals.
  • We rate the evidence behind Patrick's protocol higher: strong, against solid for Israetel.
  • Supplements that go into a plan: Patrick, omega-3, vitamin d with k2; Israetel, none (food first). Prescription items and personal stacks stay out of every plan.
  • Only Patrick 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

Rhonda Patrick

  • At least 10 minutes of vigorous exercise a day; she suggests this should replace the 10,000-step goalSome evidence
  • Norwegian 4 × 4: four 4-minute intervals, hard but not all-out (the original protocol uses about 85–95% of max heart rate), with 3-minute recoveries, 1–2 times a week; build up graduallySome evidence
  • Keep daily walking too: step benefits level off around 6,000–8,000 steps a day for older adultsStrong evidence
  • Strength training at the start of most sessions, supported by enough proteinStrong evidence
  • Short 'exercise snacks' (e.g. 1 minute of squats or burpees) spread through the daySome evidence

Mike Israetel

  • For the average person, about 30 minutes of training twice a week gives the best return on time.Some evidence
  • After 40: most sets in the 10–20 rep range, some at 20–30, and 5–10 reps only rarely, because heavy low-rep sets raise the risk of injury.Some evidence
  • Train each muscle twice a week, starting with 1–2 hard sets per muscle per session, and add a set the next week if you recovered well.Some evidence
  • Lower the weight slowly and pause for 1–2 seconds at the bottom.Some evidence
  • Warm up more: three warm-up sets (light, medium, heavier) before the first working set, and 1–2 before each later exercise.Personal habit
  • Add weight in small steps: rarely more than about 2.5 kg or one rep per set at a time.Personal habit
  • Choose joint-friendly exercises with a high stimulus, for example a hack squat instead of a heavy back squat.Some evidence
  • Take a planned easy week every 4–6 weeks, and a lower-volume month about every 5 months.Personal habit

Eating

Rhonda Patrick

  • Protein about 1.6 g per kg of body weight a day to support resistance trainingStrong evidence
  • Whole-food meals built on vegetables, berries and a protein source (eggs, fish, poultry, red meat)Personal habit

Mike Israetel

  • If you want to gain muscle, only gain weight when you are lean: about 0.25 kg a week for 4–8 weeks, then a fat-loss phase.Personal habit
  • Stay under about 20% body fat while gaining, come back to about 15% afterwards, and get blood tests after gaining phases.Personal habit

Supplements

Rhonda Patrick

  • Omega-3 (EPA + DHA) about 2 g a day as a starting point; aim for an Omega-3 Index of 8% or more and retest after about 4 monthsSome evidence
  • Take omega-3 with a meal that contains fat; higher doses need care (bleeding risk, atrial fibrillation, medicines)Doctor only
  • Vitamin D with vitamin K2 in the eveningSome evidence
  • Creatine 10 g a day (her own dose, above the usual 3–5 g)Personal habit
  • Multivitamin, magnesium, nicotinamide riboside and PQQ as part of her personal stackPersonal habit

Mike Israetel

No specific guidance in what we reviewed.

Sleep & recovery

Rhonda Patrick

  • Sauna 4–7 times a week, around 20 minutes at roughly 79 °C, based on Finnish cohort dataSome evidence
  • Schedule heat sessions a couple of hours before bedPersonal habit
  • After short sleep, vigorous exercise such as intervals or weights can help blood-sugar controlSome evidence
  • Cold exposure mainly in summer; she does not keep it up in winterPersonal habit

Mike Israetel

No specific guidance in what we reviewed.

Brain health

Rhonda Patrick

  • Push hard enough to raise lactate: hard exercise raises BDNF, a growth factor linked to learning and mood (human evidence still early)Some evidence
  • Frequent sauna use is linked with lower dementia risk in Finnish men (observational)Some evidence
  • Keep omega-3 status up; she links it to brain health and ageing markersSome evidence

Mike Israetel

No specific guidance in what we reviewed.

Weak spots to know

Rhonda Patrick

  • The sauna benefits she highlights come mainly from one observational cohort of middle-aged men in eastern Finland. It shows an association, not proof that sauna causes the benefit; women were not included, and commentators noted the reason for the link is unclear (heat, relaxation, lifestyle or social contact).
  • An epidemiology newsletter (The Edge of Epidemiology, 2025) argued that some of her headline numbers, such as vitamin D cutting dementia risk by about 40%, rest on observational studies and overstate what is known; genetic and trial evidence is mixed.
  • She often builds a case from biological mechanisms (e.g. lactate and BDNF, nutrients and serotonin). Several of these ideas are supported mostly by animal or small short-term human studies, as her own episodes acknowledge.

Mike Israetel

  • Most of his content is aimed at bodybuilders and younger lifters; advice for people over 40 is a smaller part of it.
  • Many specific numbers, such as when to take easy weeks or how fast to add sets, are coaching rules of thumb rather than findings from trials.
  • He sells training programmes and diet products through RP, the company he co-founded.

Build a plan from Patrick, Israetel 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 Patrick's stylePlan in Israetel's styleMix both

Questions

What is the main difference between Rhonda Patrick and Mike Israetel?

Their training split differs most in strength: Patrick about 30%, Israetel about 65% (our estimate from their published routines). Patrick's signature habit is Sauna 4–7 × a week; Israetel's is 2 × 30 min, close to failure.

How much protein do Patrick and Israetel recommend?

Patrick: ~1.6 g/kg. Israetel: No fixed target.

Whose advice has stronger evidence?

We rate the evidence behind Patrick's protocol higher: strong, against solid for Israetel.

Do Patrick and Israetel disagree?

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

Can I combine Patrick and Israetel?

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.

More comparisons

Peter Attia vs Rhonda PatrickAndrew Huberman vs Rhonda PatrickAndy Galpin vs Rhonda PatrickGabrielle Lyon vs Rhonda PatrickRhonda Patrick vs Layne NortonRhonda Patrick vs Stacy SimsPeter Attia vs Mike IsraetelAndrew Huberman vs Mike IsraetelAndy Galpin vs Mike IsraetelGabrielle Lyon vs Mike IsraetelLayne Norton vs Mike IsraetelStacy Sims vs Mike IsraetelAll comparisons →

Full sources are on each profile: Rhonda Patrick · Mike Israetel. Reviewed October 2026.