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You Know Your Body. If Something Feels Off, It Probably Is.

You Know Your Body. If Something Feels Off, It Probably Is. You Know Your Body. If Something Feels Off, It Probably Is. You Know Your Body. If Something Feels Off, It Probably Is.

Let's figure it out through  functional nutrition.

Download the Free Guide

Welcome to Fueled Health

If you're struggling with fatigue, anxiety, weight that won't budge, mood swings, or declining performance and conventional care hasn't given you the full picture- I can help.


Through functional nutrition, we'll explore the connections between your gut health, hormones, blood sugar, and overall wellbeing. Together, we'll uncover what's at the root of your symptoms, so you can finally feel like yourself again.


I'm Sara McKenna, a board-certified Family Nurse Practitioner and Functional Nutrition Practitioner. With over two decades in emergency medicine and a Master's of Science in Integrative & Functional Nutrition, I've seen what happens when metabolic and mental health issues go unaddressed. Now I help women take a different approach, one that looks at root causes, not just symptoms.


Personalized functional nutrition protocols.


Root-cause exploration, not band-aid solutions.


Support that fits your life and goals.

Start Here

The Metabolic Root Cause Approach

Why Your "Unrelated" Symptoms Are Actually Connected

Most people come to me with what looks like a long list of separate problems: anxiety and weight that won't budge andchronic fatigue and hormonal chaos. Their doctors treat each symptom separately—antidepressants for anxiety, diet plans for weight, hormones for menopause.


But here's what conventional medicine misses: these aren't separate problems.

Cutting-edge research from Harvard's metabolic psychiatry program, Columbia's mitochondrial research, and leading performance scientists reveals that anxiety, weight struggles, fatigue, hormonal imbalances, and performance plateaus often share the same root cause: metabolic and mitochondrial dysfunction.


When your metabolism isn't working optimally—when blood sugar is dysregulated, when mitochondria aren't producing energy efficiently, when chronic stress disrupts your HPA axis—it doesn't just affect one system. It cascades across your entire body.

That's why someone doing "all the right things" still struggles. You're addressing symptoms, not the underlying metabolic patterns driving them.


This is what I do differently. With 20 years of emergency medicine experience and advanced training in functional nutrition, I help you understand the metabolic patterns connecting your symptoms. We don't just treat what you can see—we address what's actually broken at the root level.

CHOOSE YOUR FUELED PATH

FUELED BODY

Balance hormones, stabilize blood sugar, and optimize metabolism. For women navigating perimenopause, weight struggles, and energy issues.

Explore This Path

FUELED MIND

Address anxiety, mood swings, and mental fog through the gut-brain connection. Science-backed nutrition for mental wellbeing.

Explore This Path

FUELED ATHLETE

FUELED ATHLETE

Optimize performance and protect hormonal health. Nutrition strategies for female endurance athletes who want to PR without burnout.

Explore This Path

The Fueled Method is built on three core pathways to support your health, mind, and performance.

FUELED BODY

Strengthen your foundation.

Lasting health is about more than quick fixes or willpower — it starts with your foundation. Fueled Health helps you stabilize energy, support hormones, and optimize nutrition so your body works with you, not against you. Whether your goal is to reset, improve body composition, or simply feel more balanced day to day, this is where lasting change begins.


Learn more on the Fueled Body page.

FUELED MIND

Sharpen your resilience.

Mental clarity and resilience aren’t just traits — they’re skills you can build. Fueled Mind weaves nutrition, lifestyle design, and mindset tools together to fuel calm energy, sharper focus, and stress recovery. This isn’t therapy or psychiatry — it’s practical, science-driven coaching that strengthens both brain and body so you can show up fully in your life.


Learn more on the Fueled Mind page.

FUELED ATHLETE

Fuel your goals.

Every athlete has a goal — whether it’s building endurance, finishing strong, or chasing a personal best. Fueled Athlete goes beyond mileage and macros to help you integrate fueling, hydration, recovery, and mindset into one clear strategy. With science-based guidance and practical support, you’ll be able to train with purpose and step to the start line confident, calm, and ready to perform.


Learn more on the Fueled Athlete Page

Not sure which path fits? Start with a Fueled Foundation Session.

Start Here

What Makes Fueled Health Different

Expert Guidance

You don't need guesswork. With over two decades in emergency medicine and advanced training in functional nutrition, I provide clear, evidence-based direction so you know exactly what matters for your health and performance.


Practical Tools
Real change happens when science meets real life. That’s why I combine coaching strategies with actionable systems—so your plan fits your schedule, energy, and goals, not the other way around.


Nutrition at the Core
Food fuels everything: your energy, your resilience, your performance. Fueled Health weaves nutrition into every service, making it the foundation for both physical and mental wellbeing.




This unique hybrid model bridges healthcare and coaching, helping you fuel both body and mind for lasting results.

How It Works

Step 1: Start with a Conversation

We begin with a short, low-pressure conversation to understand your goals, challenges, and priorities.

Step 2: Create Your Fueled Plan

Together, we build a personalized strategy rooted in science and nutrition. You’ll get clear guidance plus practical tools to help you take action right away.

Step 3: Fuel Your Results

If you choose ongoing support, you’ll put your plan into practice, fueling your health, mind, and performance in ways that last.

Not sure where to start?

In a free 15-minute call, we’ll talk through what’s been feeling off, what you’re hoping to change, and whether working together makes sense.

Book a Free Discovery Call

Get the Free Guide: Understanding Your Metabolic Health

Disclaimer: Fueled Health provides nutrition and lifestyle coaching services for educational purposes only. These services do not constitute medical care. Please consult a licensed provider for diagnosis or treatment. Copyright © 2025 Fueled Health - All Rights Reserved.

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