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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 an endurance athlete or high-performer who's training hard but feeling exhausted, struggling with recovery, or wondering if you have to choose between performance and longevity - I can help.


Through metabolic optimization, we'll address the root causes of fatigue, poor recovery, and plateaued performance. Together, we'll uncover what's at the root, whether it's blood sugar dysregulation, underfueling, hormonal imbalance, or metabolic overwhelm - so you can perform at your peak today AND for the next 30 years


I'm Sara McKenna, a Board-Certified Nurse Practitioner with 26 years in emergency medicine,  a Master's in Integrative & Functional Nutrition and a BS in Exercise Science. I'm also an endurance athlete who got tired of choosing between performance and longevity. Now I help athletes and high performers optimize their metabolism so you don't have to sacrifice one for the other.


  • Metabolic optimization for sustained performance


  • Root-cause exploration, not band-aid solutions


  • Support that works with your training, not against it


Start Here

The Metabolic Root Cause Approach

Why Athletes & High-Performers Struggle Despite Doing Everything 'Right

Most endurance athletes and high-performers come to me with what looks like separate problems: poor recovery, energy crashes, training plateaus, stubborn body composition, hormonal imbalances, brain fog, anxiety, and depression.


But these aren't separate problems.


Research shows that recovery issues, energy dysfunction, hormonal imbalances, and performance plateaus often share the same root cause: metabolic dysregulation.


When blood sugar is unstable, when you're chronically underfueling, when stress hormones are dysregulated —it doesn't just affect one thing. It cascades across your entire system: energy, hormones, recovery, mood, cognitive function, and mental clarity.


That's why doing "all the right things" doesn't always work. You're treating symptoms, not the metabolic patterns driving them.


With 25 years in emergency medicine and a Master's in Functional Nutrition, I help athletes and high-performers understand the metabolic patterns connecting their symptoms. We address what's actually broken at the root level—so you can perform at your peak today AND stay competitive for decades.

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

With 26 years in emergency medicine and a Master's in Functional Nutrition, I bring both clinical expertise and real-world athletic experience to your metabolic optimization. You get evidence-based protocols informed by what I've seen in the ER, what research shows, and what actually works for athletes in training. No guesswork—just clear direction on what matters for performance and longevity.


Practical Tools
Real change happens when science meets real life. I provide actionable systems that fit your training schedule, travel, work demands, and goals. Your plan adapts to your life - not the other way around. Whether it's strategic meal timing around workouts, blood sugar stabilization protocols, or HPA axis support, you get tools you can actually use.


Nutrition at the Core
Food fuels everything: your energy, recovery, hormones, performance, and long-term metabolic health. But most athletes either undereat (crushing metabolism) or follow generic plans that ignore athletic demands. I help you fuel strategically for both peak performance today AND metabolic durability for decades. You shouldn't have to choose between the two.

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

Connect with Fueled Health

Free Blood Sugar Guide: 5 Mistakes That Sabotage Performance

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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