Compare experts › Rhonda Patrick vs Mary Claire Haver

Rhonda Patrick vs Mary Claire Haver

Rhonda Patrick (biomedical scientist) and Mary Claire Haver (physician, ob-gyn) 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 (13)
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.
Loaded carry
Walking while holding something heavy, like shopping bags or dumbbells.
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.
Fibre
The part of plant foods you don't digest. It feeds healthy gut bacteria and keeps you full.
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.
Perimenopause
The years of changing hormones before periods stop for good.
Hormone therapy (HRT, MHT)
Medicine that replaces hormones that fall at menopause. Only a doctor can prescribe it.

At a glance

MeasureRhonda PatrickMary Claire Haver
BackgroundBiomedical scientistPhysician, OB-GYN
Training split30% strength · 40% aerobic · 30% intervals · 0% mobility55% strength · 40% aerobic · 0% intervals · 5% mobility
Signature habitSauna 4–7 × a weekFibre 25 g+ a day
Protein~1.6 g/kg80–120 g a day
Training styleInterval-heavyWomen 40+
Overall evidenceStrongStrong
FollowingInstagram 1.2M · YouTube 731KInstagram 3.6M · YouTube 688K

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

The key differences

  • Haver puts more of the week into strength: about 55% against 30%.
  • Patrick puts more of the week into intervals: about 30% against 0%.
  • In plans in their style, Patrick's hard sessions are 4-minute intervals (Norwegian 4 × 4); Haver's are 1-minute intervals.
  • We rate the overall evidence behind both protocols as strong.
  • Supplements that go into a plan: Patrick, omega-3, vitamin d with k2; Haver, 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

Mary Claire Haver

  • Full-body weight training at least 2 days a week (she does 3–4), progressing gradually, ideally with a trainerStrong evidence
  • Walk at least 3 days a week; beginners start with 5–10 minutes a dayStrong evidence
  • To progress: add a weighted vest to walks, more steps, or a third lifting dayPersonal habit
  • No exercise types need to be avoided in menopause; strength, cardio, stretching and mind-body work all matterNote

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

Mary Claire Haver

  • Protein about 1.5 g per kg of healthy body weight a day, with about 1.8 g/kg as a stretch goalSome evidence
  • Fibre at least 25 g a day, building slowly towards 30–45 gStrong evidence
  • Eat about 30 different plant foods a week (vegetables, fruit, nuts, seeds, grains, herbal teas)Some evidence
  • Anti-inflammatory, Mediterranean-style eating: limit added sugar and processed carbohydrate, add leafy greens, olive oil, berries, nuts and fermented foodsStrong evidence
  • Spread protein across meals and snacks, each paired with a healthy fat and a healthy carbohydratePersonal habit
  • She originally promoted 16:8 intermittent fasting but has pulled back, saying it can make enough protein hard to reachNote

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

Mary Claire Haver

  • Omega-3, vitamin D and vitamin K among the supplements she takes; she does not give general dosesPersonal habit
  • Fibre supplement if diet alone falls short of the daily targetPersonal habit
  • Check with your doctor before starting any new supplementNote
  • She sells her own supplement line ('Pause), so weigh her product recommendations with that in mindNote

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

Mary Claire Haver

  • Menopausal hormone therapy, chosen with a doctor; she calls it the most effective treatment for hot flushes and night sweatsDoctor only
  • Prefers non-oral (patch, gel, spray) oestrogen, which carries a lower clot risk than tablets; progesterone for women with a uterusDoctor only
  • Magnesium (L-threonate) and a sleep supplement in her own routinePersonal habit

Stress & mind

Rhonda Patrick

No specific guidance in what we reviewed.

Mary Claire Haver

  • Journal for a few minutes every dayPersonal habit
  • Add meditation, using an app or free guided sessionsSome evidence
  • Prepare questions before midlife health check-ups and push for proper care of symptomsPersonal habit

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

Mary Claire Haver

  • Points to observational data linking longer lifetime oestrogen exposure, including hormone therapy, with better cognition; not a licensed reason to start hormonesDoctor only
  • Creatine for possible memory and mood benefits; most of this evidence is from small or non-menopausal studiesSome evidence
  • Strength training, protein and fibre as part of reducing long-term risks such as dementia, heart disease and diabetesSome evidence

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.

Mary Claire Haver

  • Several menopause specialists, quoted in a 2024 New York Times report, said she promotes hormone use beyond official guidelines; one said patients now ask for hormones to prevent heart disease or dementia, or testosterone for general wellbeing.
  • Commercial ties, stated neutrally: she owns The 'Pause Life (a multimillion-dollar business selling supplements, programmes and online courses) and a cash-pay menopause clinic. The Menopause Society discourages doctors from selling their own products, and the advertising watchdog Truth in Advertising flagged some product claims; according to the New York Times, she then hired a consultant to review the claims on her website.
  • An independent review by ConsumerLab found some of her supplements costly for what they contain, with creatine claims that overstate the evidence and a vitamin D dose at the upper safe limit.

Build a plan from Patrick, Haver 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 Haver's styleMix both

Questions

What is the main difference between Rhonda Patrick and Mary Claire Haver?

Their training split differs most in intervals: Patrick about 30%, Haver about 0% (our estimate from their published routines). Patrick's signature habit is Sauna 4–7 × a week; Haver's is Fibre 25 g+ a day.

How much protein do Patrick and Haver recommend?

Patrick: ~1.6 g/kg. Haver: 80–120 g a day.

Whose advice has stronger evidence?

We rate the overall evidence behind both protocols as strong.

Do Patrick and Haver disagree?

Not directly in what we reviewed. Their differences are in emphasis: haver puts more of the week into strength: about 55% against 30%.

Can I combine Patrick and Haver?

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: Rhonda Patrick · Mary Claire Haver. Reviewed October 2026.