Dr. Jasmina Dedic-Hagan

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Turramurra, NSW
Dr. Jasmina Dedic-Hagan

Functional Medicine Doctor | CMO & Founder, Vitality360 | Helping Women Reclaim Their Energy & Health | PhD Molecular Biology

As Co-Founder & Chief Medical Officer of Vitality360, I help people reclaim their energy, optimise their health, and achieve long-term vitality through evidence backed functional medicine. My approach identifies and addresses the root causes of fatigue, hormonal imbalances, stubborn weight, and metabolic dysfunction, delivering practical, science-based solutions for long-term health. With a background in functional medicine and molecular biology, I bridge the gap between cutting-edge research and real-world application, with a strong focus on women’s health. In my clinical practice, I take a comprehensive approach - integrating nutrition, lifestyle, fitness, and, when necessary, targeted supplementation or medication - to help women feel their best at every stage of life. I am passionate about making complex medical science accessible and actionable. With extensive teaching experience, I specialise in translating the latest research into practical strategies through workshops, content, and expert guidance. At Vitality360, my mission is to empower women to take control of their health, restore their energy, and build long-term resilience.

03/02/2026

AI health information can be dangerously misleading. This Guardian investigation doesn't surprise me. It validates what I see daily.

Health isn't a number on a screen. It's a story - YOUR story. And stories need interpreters, not algorithms.
I'm not anti-technology. I use AI tools all the time. But there's a difference between AI as a tool and AI as your doctor.

If something feels off in your body, trust that instinct. Find someone who'll listen properly - not just compare your numbers to a generic reference range.

You deserve more than algorithmic guesswork.

Make sure someone qualified is listening.

Full article: https://www.theguardian.com/technology/2026/jan/11/google-ai-overviews-health-guardian-investigation?CMP=Share_iOSApp_Other

30/01/2026

The truth is, I never recommend a daily multivitamin to my patients.

Is it really worth taking? It might be doing less than you think - or creating new problems entirely.

Not because supplements aren't valuable - they absolutely can be. But because the "take this one pill for everything" approach fundamentally misunderstands how nutrition works.

Here's what I see constantly in clinic: women taking the same multivitamin or supplement stack for 10+ years without ever questioning whether it's actually serving them. Meanwhile, their body has changed dramatically - perimenopause has shifted their hormonal landscape, stress has depleted specific nutrients, gut changes have altered absorption capacity.

The multivitamin hasn't adapted. But their needs have.

What I prefer? Test, don't guess.

A comprehensive nutrient panel reveals YOUR specific gaps - not what the average person might need. One woman needs more magnesium and B6 for stress and sleep. Another needs iron and B12 for energy. Another is actually getting too much of certain nutrients and creating new imbalances.

When you know YOUR biochemistry, you can supplement strategically rather than throwing everything at the wall.

If a multivitamin makes sense for your situation, treat it as a foundation, not a solution. And scrutinise it like you would any other health investment - because that's exactly what it is.

The supplement industry is largely unregulated. Quality varies wildly. Your discernment matters.

Sometimes the most powerful thing we can do is pause and ask: is this still serving me? And actually take LESS.

27/01/2026

As a functional medicine practitioner, I see women taking handfuls of supplements, thinking more = better. But science shows nutrients interact in complex ways—one can block another's absorption, use, or increase excretion. The "throw more at it" approach often backfires.

Key insights from research on common midlife supplements:

Vitamin D: Over-supplementation is a top cause of toxicity (hypercalcemia). It needs cofactors like K2 (for calcium direction), magnesium (activation), and good bile flow. High doses (e.g., 10,000 IU) without them cause stress, not optimiSation.

PMID: 30294301

Calcium: Absorption maxes out at ~500 mg per dose; higher amounts are mostly wasted (and raise kidney stone/CV risks). In perimenopause, isolated calcium without D3/K2/magnesium risks soft-tissue deposits. Food-first is often better.

PMID: 17507729

Magnesium: Vital for 300+ reactions (hormone metabolism, stress, blood sugar). Forms matter: glycinate for sleep/anxiety, malate for energy/pain, citrate for constipation, threonate for brain fog. Supplemental upper limit: 350 mg/day (more MAY cause gut issues).

PMID: 26085547

Omega-3s: Limit combined EPA/DHA to ~5g/day; higher increases bleeding/stroke risk. Quality is keY, oxidiSed oils inflame more. For perimenopause: higher EPA aids mood, DHA helps brain fog.

PMID: 38742535

Interactions:

- Calcium blocks thyroid meds → separate by 4+ hours (PMID: 3092723)
- High-dose zinc depletes copper → impacts iron/energy (PMID: 3335323)
- B6 >100mg/day risks peripheral neuropathy (PMID: 37447150)
Vitamin C >2,000mg/day linked to kidney stones/GI issues (doesn't prevent colds). (PMID: 26463139)

To prevent this, test first (nutrient panels), and personalise based on genetics/gut/hormones/stress/meds. Fewer high quality supplements at the right doses beat "more is better."

What supplements are you taking?

26/01/2026

Your morning coffee might be doing more for your heart than you realise.

New research is constantly refining what we know about health, and some of the findings from 2025 might surprise you.

That espresso you enjoy before 1pm? Associated with a 31% reduction in cardiovascular mortality over a decade. But drink it all day, and the protective effect disappears, likely because afternoon caffeine disrupts the sleep that's so critical for metabolic and hormonal health.

Hydration matters more than most people realise, too. When we're under hydrated, our cortisol response to stress can spike by over 50% (!!!). For women navigating perimenopause, when cortisol dysregulation already contributes to fatigue, weight gain, and mood changes, this is significant.

Here's one that might change your post-workout routine: hot baths after exercise improved endurance by 25% in one study, triggering adaptations similar to altitude training. Heat stress increases blood volume and improves oxygen delivery, making recovery time genuinely productive.

And creatine? Research now shows cognitive benefits for older adults and potential improvements for menopausal women. Your brain is metabolically demanding, creatine supports cellular energy when you need it most.

Finally, a reminder that movement throughout the day matters independently of formal exercise. Hours of sitting are linked to cognitive decline regardless of how active you are otherwise.

Small, evidence-based shifts. That's where sustainable change happens.
Which of these surprised you most? Drop a comment below 👇

14/01/2026

Sweating is one of your body's most effective detoxification pathways.

The BUS studies (Blood, Urine, Sweat) found that many environmental toxins - including BPA, phthalates, and heavy metals - are excreted through sweat, sometimes at rates exceeding urinary excretion.

Even more interesting: in some participants, toxins appeared in sweat that weren't detectable in blood or urine at all.
This suggests they were stored deep in tissues and only mobilised through heat.

Finnish research supports the broader health benefits too. Regular sauna use (4+ times weekly) is linked to significant reductions in cardiovascular mortality and all-cause death.

Bryan Johnson recently tracked his own sauna protocol - 15 sessions of 20 minutes - and documented substantial reductions in phthalates, perchlorate, herbicides, and microplastics. It's n=1 data, but it aligns with what the research has been telling us for years.

The takeaway? Your body already knows how to detox. Sometimes it just needs the right conditions.

If you have access to a sauna, consider making it a regular practice. Start with 15-20 minutes at a comfortable temperature.

PMID: 21057782
PMID: 22253637
PMID: 23213291
PMC5941775

03/01/2026

January is here, and so is the pressure to "start fresh." But what if the approach you've always taken is the very thing holding you back?
The rules change after 40.
So what does work?
👉🏽Prioritise protein at every meal. It protects lean muscle mass, which naturally declines with age, stabilises blood sugar, and provides the amino acid building blocks for neurotransmitters like serotonin and dopamine that govern mood and energy. Start with breakfast — aim for 25-30g (eggs + smoked salmon, Greek yoghurt with nuts, or a protein smoothie).
👉🏽Support your gut. Your gut microbiome plays a central role in estrogen metabolism through the estrobolome, influences nutrient absorption, and modulates inflammation. A compromised gut means compromised hormones. Try adding a forkful of sauerkraut to your lunch or swapping regular milk for kefir in your smoothie.
👉🏽Protect your sleep fiercely. Sleep is when your body repairs, detoxifies, and rebalances hormones. Poor sleep drives insulin resistance, increases appetite-regulating hormones like ghrelin, and impairs cognitive function. Set a "wind down" alarm 30 minutes before your ideal bedtime — even just 3 nights a week.
👉🏽And perhaps most importantly, address your stress. Chronically elevated cortisol will override every dietary and exercise effort you make. It promotes fat storage, disrupts thyroid function, and depletes progesterone. Try 5 slow belly breaths before each meal — it takes 30 seconds and shifts your nervous system into rest and digest mode.
This year, I'm inviting you to stop fighting your body and start listening to it.
The goal isn't punishment, it's partnership.

What's one thing you're approaching differently this January? Tell me below 👇

PMID: 16720655
PMID: 25107954
PMID: 26857389
PMC4688585

02/01/2026

Your vegetables contain up to 38% fewer nutrients than they did 30 years ago. Let that sink in. 🫣

Here's something that's rarely discussed but increasingly relevant: the nutritional value of our food is declining.

Not because of how it's processed or where it's grown, but because of changes happening at the atmospheric level.

As carbon dioxide concentrations rise, plants are undergoing a fundamental shift in their composition. They're producing more carbohydrates while taking up less of the minerals your body requires, zinc, iron, and protein among them.

Analysis of nearly 60,000 crop samples across 43 different foods found nutrient declines averaging 3-4%, with some minerals (like zinc in chickpeas-dropping by up to 38%).

The phenomenon is called hidden hunger, where caloric intake is adequate but cellular nutrition is not. It helps explain why so many are experiencing persistent fatigue, hormonal chaos, brain fog, and stubborn weight despite their best dietary efforts.

So what can we do about it?

- Focus on the most nutrient-dense foods available: organ meats especially, shellfish, pastured eggs, lean animal proteins, bone broth, dark leafy greens. These pack more nutrition per bite than almost anything else.
- Diversify your plate. Variety matters more now than ever.
- Prioritise gut health as absorption is half the equation. If your gut is compromised, even an excellent diet won't fully serve you.
- And consider functional testing. Guessing at deficiencies isn't a strategy. Know your numbers and consider supplementation.

PMID: 41235454
PMID: 24805231
PMID: 31346413

27/12/2025

✨ Running Into a Midlife Upgrade... ✨This year reminded me of one big truth:

My body is not deteriorating as time moves on, it’s merely communicating.
Midlife is when the volume gets turned up.

So I have had to listen, decode, track...
A pile of data (thanks Suunto!), some smart science… and a big dollop of self trust.

And the real twist?
This was the year I had to stop pouring from an empty cup.
Prioritising quality nutrition, strength training, social connection, sleep (oh, I still have a LONG way to go here!) and pure joy... it has become non-negotiable.

Some may call it being selfish.
But it is the only way to stay the best version of myself for the people I love.

So, ....

Here’s to midlife as a biofeedback goldmine.

Here’s to knowing yourself better than ever.

And here’s to running (literally) into the next chapter.

Let’s go!

23/12/2025

Seasonality is one of the most significant - and overlooked - factors shaping your gut microbiota - it's not just about what you eat. Your microbiome responds to seasonal variations in temperature, humidity, sunlight exposure, physical activity patterns, time spent outdoors, and even seasonal infection rates.

These interconnected factors create a dynamic system that shifts throughout the year.

For most of human history, food availability followed seasonal patterns, and our gut bacteria evolved to anticipate these changes. Populations still living with seasonal food variation show the most pronounced microbiome shifts across the year.

Research increasingly shows that these seasonal microbiome changes have significant implications for chronic disease. These dynamic shifts impact the gut-immune system interaction and may contribute to the onset or worsening of symptoms at certain times of year.

Your microbiome also follows its own circadian rhythm within each day. Different bacterial species dominate at different times, influencing nutrient absorption, inflammatory signalling, and blood sugar regulation.

Then there's meal timing: Your pancreatic beta cells are significantly more responsive in the morning than evening. This means identical meals eaten at 8pm vs 8am produce dramatically different blood sugar responses.

Summer fruits contain specific polyphenols (anthocyanins, ellagic acid) that support beneficial bacterial species. Eating seasonally provides your gut with compounds that align with the natural seasonal shifts your microbiome is already undergoing.

And it all starts with light.

Morning sunlight sets your central circadian clock, which coordinates peripheral clocks throughout your body - including your gut. This cascade affects insulin sensitivity, appetite hormones, and digestive enzyme production for the entire day.

My summer strategy:
→ Morning light exposure within 30 minutes of waking
→ Larger, protein-rich meals earlier in the day
→ Abundant seasonal produce (berries, stone fruits, salads, fresh herbs)
→ Lighter evening meals when socialising late
→ Proactive hydration
→ More time outdoors to align with natural seasonal rhythms

18/12/2025

Only 19% of people keep their resolutions past two years.

But even successful resolvers slipped up an average of 14 times.

The difference? They kept going anyway.

Consistency beats perfection.

Every time.

The ones who feel good in January aren't the ones who were "perfect" through Christmas. They're the ones who kept a few gentle anchors going while still enjoying themselves.

One balanced meal most days. A few walks.
Enough water.
Decent sleep when possible.
Nothing extreme.

Enjoy December. Just don't abandon ship completely.
Small anchors now will cause a smoother January later.

J x

16/12/2025

"Why can't I just DO the thing?!" 😩

You know the gym is good for you. You know meal prep would help. You know that email needs sending. And yet... you're horizontal, scrolling, wondering why you can't motivate yourself.

Recent research from Oxford University discovered something crazy: people with low motivation actually show MORE brain activity when deciding whether to act - not less. Their brains are working overtime on a question motivated people barely consider: "Is this worth the effort?"

And here's the kicker. That mental deliberation is exhausting... So the brain protects itself by defaulting to "no."

Guess what? It gets worse in midlife. 😂

Fluctuating estrogen affects dopamine signalling. Poor sleep tanks motivation. Blood sugar chaos makes every decision feel monumental. Throw in thyroid sluggishness or chronic inflammation and your "want" system is running on fumes.

But once you understand the mechanism, you can work WITH it:
👏🏼Your brain hates making fresh decisions? So make them the night before.
👏🏼Your dopamine needs a boost? Move your body - even a brisk walk counts.
👏🏼You need external cues? Engineer them: Shoes by the door. Vitamins next to the kettle. Let your environment do the heavy lifting.

Start outsmarting your brain instead.

🧠 Drop a brain emoji if you've ever known exactly what you should do... and done the opposite anyway.

11/12/2025

At this time of year when we're all indulging a bit more into that something sweet, I thought this might be a good topic to deep dive into to help us make the best choices.

Here's what the research tells us:

Artificial sweeteners aren't metabolically inert. They interact with your gut bacteria, your insulin signalling, and your appetite hormones in ways we're only beginning to understand.

- Studies show compounds like sucralose can reduce beneficial gut bacteria populations significantly.
- Aspartame has been linked to glucose intolerance through microbiome changes.
- And the sweet taste itself - even without calories - triggers insulin release, potentially disrupting the very metabolic processes you're trying to support.

Does this mean all sweeteners are bad? No.

Raw honey, pure maple syrup, and whole leaf stevia behave very differently in your body... They come with cofactors, enzymes, and compounds that support rather than disrupt.
But here's what matters most: understanding WHY you're reaching for sweetness in the first place.

Intense sweet cravings often signal:
↳ Blood sugar dysregulation
↳ Cortisol imbalances
↳ Nutrient deficiencies (magnesium, chromium)
↳ Gut dysbiosis
↳ Poor sleep

Address the root cause, and the cravings often resolve themselves.
Save this one. 🤍

PMID: 40277825
PMID: 9062523
PMID: 35967810

Address

Turramurra, NSW
2074

Website

http://www.lindenhealth.com.au/, https://v360.health/

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