Four small open jars of cream or moisturizer surrounded by eucalyptus leaves and small green buds, with a wooden spatula resting on one of the jars, on a white textured surface.

Your body isn’t broken.
It’s trying to tell you something.

Root-Cause Health and Functional Testing for people who have been told “everything looks normal” — but still don’t feel like themselves.

BOOK INITIAL CONSULTATION

50% off Initial Consultation in June 2026

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50% off Initial Consultation in June 2026 〰️

Cluttered workspace with a woman resting her head on a desk, surrounded by crumpled paper, a cup of coffee, a laptop with glasses on top, and a piece of paper clipped with two blue clips.

You’ve been told everything looks normal...

You’ve done the blood tests.
You’ve seen the doctor.
You’ve heard: “Everything looks fine.”

But deep down, you know something isn’t right.

You’re exhausted even after sleeping.
Your mood feels unpredictable.
Your anxiety takes over daily.
Your hormones feel out of balance.
Your digestion isn’t working the way it should.
Your body feels inflamed, overwhelmed, or simply not like yours anymore.

What if your symptoms are not random?

What if your body is communicating?

As Seen on TEDx

Your choices today shape your biology tomorrow.

In my TEDx talk, I shared how the emerging science of epigenetics is changing the way we understand health.

A medical scene with a blood sample labeled 'HORMONE TEST' on a table, a stethoscope, and two test tubes filled with dark liquid, along with medical documents.

A Different Approach To Health

As an Integrative Health Practitioner, I combine modern functional testing with a holistic understanding of the body.

Instead of only looking at symptoms, I ask:

“Why is the body responding this way?”

Together, we explore areas such as:

🌿 nutrition & mineral status
🌿 gut health
🌿 hormones & thyroid function
🌿 stress & nervous system patterns
🌿 sleep
🌿 environmental factors
🌿 emotional wellbeing

Using functional lab testing, we can look deeper and gather information about what may be contributing to imbalances — creating a personalised approach instead of guessing.

I WANT THIS

Looking Deeper Through Functional Lab Testing

  • Nutrient & Mineral Status

    Nutrient & Mineral status

  • Stress response & adrenal health

    Stress Response & Adrenal Health

  • Gut health & microbiome balance

    Gut Health & Microbiome Balance

  • Thyroid function

    Thyroid Function

  • Hormone patterns

    Hormone Patterns

  • Heavy metal burden

    Heavy Metal Burden

  • Detoxification pathways

    Detoxification Pathways

  • Inflammation markers

    Inflammation Markers

Supporting The Whole Person

Your health is influenced by far more than your genetics.

Your environment helps shape how your body functions. During our sessions together, we look at the following areas of your life.

  • Nourishing the body with the right nutrients provides the essential building blocks for energy, hormones, neurotransmitters, detoxification, and overall cellular health.

  • Quality sleep is when the body restores, repairs, regulates hormones, supports brain function, and strengthens emotional resilience.

  • Your nervous system influences every aspect of health — from digestion and hormones to immunity — determining whether your body feels safe enough to heal and thrive.

  • Environmental toxins can add stress to the body’s natural detoxification systems and may influence energy, hormones, inflammation, and overall wellbeing.

  • The way we think, feel, and perceive the world creates biological responses that can influence stress hormones, inflammation, and gene expression.

  • Human connection and our social environment profoundly impact our nervous system, emotional wellbeing, stress response, and long-term health.

  • Our life experiences can shape our beliefs, stress patterns, and biology — but through awareness and change, the body can create new patterns.

LET'S WORK TOGETHER

I Work With People Experiencing:

  • A woman with red hair resting her head on her crossed arms on a white desk, appearing exhausted or frustrated.

    Chronic Fatigue

    Low energy, exhaustion, burnout

  • Fertility & Preconception

    Trouble falling or staying pregnant, preparing the body for pregnancy

  • A woman lying in bed with a blanket, covering her face with her hands.

    Mood & Focus

    Stress, ADHD, emotional balance

  • Person clutching stomach while sitting on bed in white t-shirt and black pants.

    Gut Health

    Digestive issues, IBS, bloating

  • Person holding a paper cutout of a uterus in front of their beige pants.

    Hormonal Imbalances

    Cycles, mood, thyroid connection

  • A woman with long blonde hair, wearing a beige knitted sweater, is holding her forehead with her hand and appears to be in pain or distress.

    Heavy Metal Overload

    Brain fog, low energy, autoimmune conditions

  • A woman sitting at a desk, holding her lower back with her left hand and touching her forehead with her right hand, appearing to experience discomfort or pain.

    Chronic Pain

    Chronic inflammation, past experiences manifesting in the body

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How Working Together Looks Like

Step 1: Book an Initial Consultation (Online or In-Person)

During a 60-minute Initial Consultation, we dive deep into your health history and current situation to make sure we’ll include your unique “full picture”.

Step 2: Lab Testing

Time to do the testing. It’s as easy as it can be: You order the tests to your home, do them yourself (which means taking a urine / stool probe or taking some hair), and send them off to the lab.

Step 3: Analysis of Test Results & Targeted Action Plan

Once you got the results back, we’ll meet up for a follow-up session in which I explain to you what your test results mean and introduce you to your unique wellness action plan.

BOOK INITIAL CONSULTATION

  • "Larissa has a warm, open presence and is highly knowledgeable across many aspects of health and wellbeing. She came well-prepared, making the most of our session by providing a thorough, science-backed plan. She addressed my concerns from all angles - emotions, environment, diet, and practical steps for healing. The approach was comprehensive yet manageable, with clear strategies to move forward. If you're ready to improve your health, I highly recommend her."

    – Magdalena

  • „ I’ve always been my own doctor — trusting my body, walking the holistic path, and rarely seeking outside advice. But speaking with Larissa was a breath of fresh air. She met me exactly where I was and matched the high standard I hold. The health plan she created felt completely tailored — and I’m still working with it months later. Larissa knows the body deeply. She works with it, not against it. If you’re serious about your health, talk to Larissa. She gets it."

    – Jamie

  • „I highly recommend Larissa Behrend-Sims!! I saw her today and her knowledge and care was so refreshing and she has been so helpful even after the appointment with links, PDFs and care plans to work towards. There’s been no forceful intentions on buying things personally from her or anyone she could “endorse”, it’s all just recommendations and at your own pace to buy them from reputable sites (which all have high reviews) or trying simple things we may already have at home. I was skeptical about trying yet ANOTHER new specialist but I’m feeling really optimistic after leaving this session with her. So yeah, highly reccomend if you’re umming and ahhhing to just make the appointment!!"

    – Cassie

Your body has been speaking

Maybe it’s time someone helped you understand the language.

If you’re ready to stop guessing and start exploring what your body needs, I would love to support you.

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Any Questions?

We’d love to hear from you! Get in touch and I’ll get back to you in the next 24 hours.