Compare experts › Mary Claire Haver vs Gary Brecka

Mary Claire Haver vs Gary Brecka

Mary Claire Haver (physician, ob-gyn) and Gary Brecka (wellness entrepreneur (not a doctor)) 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 both See the protocols

Words explained (12)

Zone 2: Steady cardio at a pace where you can still talk in full sentences, but not sing.
Intervals: Short hard efforts with easy recovery in between, such as 30 seconds fast, 90 seconds slow.
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.
MTHFR, methylation: A gene and the chemical process it helps with. The common variants are very frequent, and testing them is not recommended for most people.

At a glance

Measure	Mary Claire Haver	Gary Brecka
Background	Physician, OB-GYN	Wellness entrepreneur (not a doctor)
Training split	55% strength · 40% aerobic · 0% intervals · 5% mobility	20% strength · 55% aerobic · 5% intervals · 20% mobility
Signature habit	Fibre 25 g+ a day	Sunlight, breathwork, cold
Protein	80–120 g a day	~30 g soon after waking
Training style	Women 40+	Morning rituals
Overall evidence	Strong	Mostly weak
Following	Instagram 3.6M · YouTube 688K	Instagram 3M · YouTube 63K

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 20%.
Brecka puts more of the week into aerobic base (zone 2): about 55% against 40%.
Brecka puts more of the week into mobility and stability: about 20% against 5%.
In plans in their style, both use 1-minute intervals for hard sessions.
We rate the evidence behind Haver's protocol higher: strong, against mostly weak for Brecka.
Supplements that go into a plan: Haver, none (food first); Brecka, omega-3 fish oil, creatine monohydrate. Prescription items and personal stacks stay out of every plan.
Only Brecka 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

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

Gary Brecka

About 30 minutes of low-intensity movement in the morning (part of the '30-30-30' idea he promotes)Strong evidence
Stay mobile and active every dayStrong evidence
Exercise while breathing extra oxygen (EWOT)Personal habit
Gives few specific strength-training targetsNote

Eating

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

Gary Brecka

About 30 g of protein within 30 minutes of wakingSome evidence
Avoid processed foods; eat whole foodsStrong evidence
Lower-carb or ketogenic plans for weight loss in some clients, guided by blood testsDoctor only

Supplements

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

Gary Brecka

Vitamin D3, ideally guided by a blood testDoctor only
Omega-3 fish oil in the morningSome evidence
Methylfolate and methylated B vitamins based on a methylation gene testPersonal habit
Hydrogen water tabletsPersonal habit
Creatine (sold under his brand)Some evidence
Peptides such as BPC-157 and TB-500 (he is a fan)Doctor only

Sleep & recovery

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

Gary Brecka

Morning daylight to set the body clockStrong evidence
Short daily cold water exposureSome evidence
Red light therapy bed, about 20 minutesPersonal habit
Hyperbaric oxygen and cryotherapy at homePersonal habit

Stress & mind

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

Gary Brecka

Wim Hof-style breathing: 3 rounds of 5–30 breaths, then a breath hold, always seatedSome evidence
Same routine at the same time each dayPersonal habit
Barefoot grounding outdoorsPersonal habit

Brain health

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

Gary Brecka

No specific guidance in what we reviewed.

Weak spots to know

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.

Gary Brecka

He is not a medical doctor or a research scientist; McGill University's Office for Science and Society (Jonathan Jarry, 2025) called his expertise questionable and said the health interventions he points customers to run from unproven to pseudoscientific.
His MTHFR claims run against medical genetics guidance: the American College of Medical Genetics and Genomics has advised against routine MTHFR variant testing since 2013 (updated 2020).
Hydrogen water, grounding and red light are presented with more certainty than the research supports; the McGill review described hydrogen research as small and early, and grounding as pseudoscience.

Build a plan from Haver, Brecka 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 Haver's style Plan in Brecka's style Mix both

Questions

What is the main difference between Mary Claire Haver and Gary Brecka?

Their training split differs most in strength: Haver about 55%, Brecka about 20% (our estimate from their published routines). Haver's signature habit is Fibre 25 g+ a day; Brecka's is Sunlight, breathwork, cold.

How much protein do Haver and Brecka recommend?

Haver: 80–120 g a day. Brecka: ~30 g soon after waking.

Whose advice has stronger evidence?

We rate the evidence behind Haver's protocol higher: strong, against mostly weak for Brecka.

Do Haver and Brecka disagree?

Not directly in what we reviewed. Their differences are in emphasis: haver puts more of the week into strength: about 55% against 20%.

Can I combine Haver and Brecka?

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: Mary Claire Haver · Gary Brecka. Reviewed October 2026.