Southpoint · Jacksonville, FL
Precision body composition testingin Jacksonville, FL.
Muscle, bone, visceral fat, and how efficiently your heart uses oxygen, measured on clinical-grade equipment at our Southpoint location.
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Age 41 yrs old
Age 35 yrs old
Where it begins
Three tests. No estimates.
The options for reshaping your body keep multiplying. A new protocol, a heavier training block, more protein, deeper sleep, the thing a podcast swore by last week. DexaFit shows you which of them changed anything, and which just cost you time.
One weight, and the four numbers it hides.
That single figure on the scale breaks apart into the readings that decide outcomes: fat, lean muscle, the fat packed around your organs, and bone. You leave knowing what is holding, what is fading, and where the work is paying off.
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Your real ceiling, measured, not a watch's guess.
VO₂ Max is the strongest population-level predictor of all-cause mortality, and the number athletes and longevity researchers have leaned on for decades. You leave with heart-rate zones set to your own limit, not a wristband's average.
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Feed the metabolism you have, not an average.
Online formulas run on population averages, and your real number can sit 20 to 30% off one. Fifteen minutes of breath analysis reads exactly what your body burns at rest, and what belongs on your plate.
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Everything we offer in Jacksonville
Start with the three clinical-grade tests at the core of DexaFit, then round out the picture with the add-ons we offer at the Southpoint location.
DEXA Scan
Fat, lean muscle, visceral fat, and bone, region by region at ±2% clinical accuracy.
Explore DEXA scans → Cardio FitnessVO₂ Max Test
Your true aerobic ceiling, measured directly, with training zones set to your own number.
Explore VO₂ Max → MetabolismRMR Test
The calories your body burns at rest, measured by breath, so nutrition runs on your real number.
Explore RMR →Biomarker Lab Tests
Blood panels that read the markers behind metabolism, inflammation, and long-term health.
Explore lab tests → Weight LossGLP-1 for Weight Loss
GLP-1 support paired with DEXA tracking, so you protect lean mass while the fat comes off.
Explore GLP-1 → RecoveryRed Light Therapy
Targeted red light sessions for recovery, skin, and tissue support between tests.
Explore red light therapy →More from DexaFit Jacksonville: About · Test prep · FAQs · Shop · Gift cards · Contact · Book an appointment
Who it's for
Every goal. Every starting line.
If you would rather build on hard numbers than rough estimates, DexaFit was made for you.
Drop the fat.
Hold the muscle.
The number fell. But which pounds actually left?
- The scale folds fat and muscle into one figure. A DEXA scan pulls them apart, down to the pound.
- On a GLP-1, roughly 1 in 3 pounds lost can be lean mass. You will see exactly where yours went.
- Smart scales miss body fat by 8 to 15%. A DEXA scan is the clinical gold standard.
Six months in, you will know whether you dropped the right weight, not simply less of it.
Train with precision.
Prove it paid off.
Close enough leaves gains on the table. Read your true margins.
- VO₂ Max sets the cap on your output. Your watch estimates it. We measure it.
- Lean mass comes back split by arm, leg, and trunk, detail no scale or band can reach.
- RMR shows what you burn at rest, so you fuel the work from numbers, not hunches.
Six months in, you will know whether the work built muscle or just moved the scale.
Your body is shifting.
See what is driving it.
The changes that matter most stay out of the mirror.
- Menopause pushes fat inward, toward the organs. The mirror misses it. A DEXA scan records it.
- Bone loss accelerates around menopause. An 8-minute scan hands you a number to act on.
- Metabolism slows through perimenopause. An RMR test tells you by exactly how much.
You stop debating whether it is hormones or habits, and start seeing which.
Hold your strength.
Keep your edge.
The numbers behind how well you hold up past 40.
- You shed 3 to 8% of lean mass each decade after 30. A DEXA scan tracks it region by region, so you know what to defend.
- Visceral fat hides deep around the organs, out of reach of the mirror. A DEXA scan measures it directly.
- VO₂ Max and resting metabolism shape how you train and how you eat. Both measured directly, not pulled from a watch.
At 50 you will know exactly what you kept, and what it took to keep it.
Longevity starts
with one number.
Wearables catch the signal. We measure the body beneath it.
- Visceral fat is tied to cardiovascular risk, and BMI is blind to it. A DEXA scan reports it in pounds.
- Across 122,007 adults, VO₂ Max predicted mortality more closely than smoking or diabetes (Mandsager et al., JAMA 2018).
- Every retest compares you against your own history, so the trend sharpens visit by visit.
In five years you will hold a trend line, not a hazy memory of how you used to feel.
No goal yet?
Begin with a baseline.
One scan, and the guessing about your body is over.
- No goal required. One baseline makes every decision that follows clearer.
- A routine checkup leaves gaps. We fill them with numbers your doctor can use.
- Start here. Training, nutrition, and goals fall into place once the baseline exists.
You will have a starting line, not a guess about where you stand.
WHAT YOU LEARN
What we measure. And why it matters.
DexaFit Jacksonville turns what usually stays out of sight into numbers you can act on.
The scale hands you one number. A DEXA scan hands you the whole picture.
Fat, lean muscle, and bone, measured one region at a time. Two people can weigh the same yet carry different risk, different metabolism, different needs. The scale blurs them together. A DEXA scan separates them.
In their words
What Jacksonville members say
Real reviews from people who have measured at our Southpoint location. DexaFit has set the benchmark for body composition, cardio, and metabolic testing since 2011.
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How it works
Measure first. Believe second.
Most people run it backward. They commit to the plan, then judge the result off a mirror, a scale, or a gut feeling. DexaFit makes the check exact, so you know whether to hold the course or change it.
Set your baseline.
Clinical-grade testing on gold-standard tech. Your true baseline, on record.
Run your plan.
We do not sell you the plan. We tell you the truth about what it did.
Come back and check.
Retest at three to six months. Long enough for change, soon enough to correct.
Book your visit
Get DexaFit Jacksonville.
Everything else builds on it.
Here is what the first visit looks like.
- 8 minutes on the scanner. Fully clothed, open air, no tunnel.
- Results the same visit. A specialist walks you through every number against age and sex matched ranges.
- You leave with a baseline. In the app, and in a report you can hand to your trainer, your nutritionist, or your doctor.
Our Southpoint location sits off JTB and I-95, an easy reach from Southside, Baymeadows, San Marco, and St. Johns Town Center. Book online and pick a time that fits your week.
Your first scan sets the baseline. Every scan after shows what changed.
Good to know
Questions we hear a lot
What people tend to ask before a first scan. Still deciding? Call (904) 775-7226 or email jacksonville@dexafit.com.
Where can I get a DEXA scan in Jacksonville, FL?
At DexaFit Jacksonville, 6817 Southpoint Parkway, Suite 2004, Jacksonville, FL 32216, in the Southpoint corridor off JTB and I-95. Book a DEXA scan online and pick a time that works. Results are ready the same visit, reviewed with a specialist before you leave.
How is DexaFit different from a gym, a fitness app, or another way to check my body?
A gym works off estimates. We measure, on the same class of equipment research hospitals rely on, and read every result against reference ranges for your age and sex.
What does a DEXA scan measure?
Dual-energy X-ray absorptiometry reads your body one region at a time: fat mass, lean mass, bone mineral density, and visceral fat. It is the clinical gold standard for body composition. Two people can share a weight and a silhouette while carrying very different risk, and the scan finds that gap in roughly 8 minutes.
How does a DEXA scan stack up against a smart scale or handheld monitor?
Smart scales and handheld monitors estimate body fat from a small electrical current and can land 8 to 15% off. A DEXA scan measures directly at roughly ±2% for body fat, splits your composition across arms, legs, and trunk, and puts a number on visceral fat no consumer device can reach.
What is VO₂ Max, and why does it carry so much weight?
VO₂ Max is how efficiently your body takes in and uses oxygen under load, the ceiling on your cardiorespiratory fitness. Across 122,007 people it tracked with all-cause mortality more closely than coronary artery disease, smoking, or diabetes (Mandsager et al., JAMA Netw Open 2018). Most people have never had it measured.
Is a VO₂ Max test only useful for athletes?
No. It fits anyone who trains, anyone weighing how long they will stay strong, and anyone who wants an honest read on where they stand. VO₂ Max responds to training at any age, so your number serves as both a target and proof the work is landing.
What happens during an RMR metabolism test?
RMR is your Resting Metabolic Rate, the calories your body spends at rest just to keep you running. We read it through breath analysis (indirect calorimetry), the clinical standard. Calculator and app estimates can miss by 20 to 30%, often the difference between a nutrition plan that works and one that stalls.
Where is DexaFit Jacksonville located?
At 6817 Southpoint Parkway, Suite 2004, Jacksonville, FL 32216, in the Southpoint business corridor off JTB and I-95, an easy reach from Southside, Baymeadows, San Marco, Deerwood, and St. Johns Town Center across Duval County.
What other tests can I book at DexaFit Jacksonville?
Beyond DEXA, VO₂ Max, and RMR, we offer biomarker lab tests, GLP-1 weight loss support, and red light therapy. Book any test online and combine two or three in a single visit. A specialist walks you through a detailed report, so you leave with numbers you can hand to your trainer, your nutritionist, or your doctor.
What is the most accurate way to measure body fat percentage?
A DEXA scan (dual-energy X-ray absorptiometry) is the clinical gold standard for measuring body fat percentage, accurate to within about 2%. Scales, calipers, and bioelectrical-impedance devices only estimate and can run 8 to 15% off, and none can read visceral fat. DEXA measures fat, lean muscle, and bone directly and region by region. DexaFit Jacksonville offers DEXA scans in Southpoint, with results the same visit.
How do I accurately measure my resting metabolic rate (RMR)?
The accurate way to measure resting metabolic rate is indirect calorimetry, a short breath test that reads the oxygen your body uses at rest. Online calculators and formulas only estimate RMR and can be off by 20 to 30%. An RMR test at DexaFit Jacksonville measures your real number in about 15 minutes, so your calorie and macro targets are built on your own metabolism rather than an average.
Where to find us
Our location in Southpoint
In the Southpoint business park off JTB and I-95, an easy reach from Southside, Baymeadows, San Marco, and St. Johns Town Center across Duval County.
DexaFit Jacksonville
6817 Southpoint Parkway, Suite 2004, Jacksonville, FL 32216.
jacksonville@dexafit.com
(904) 775-7226
Get DexaFit Jacksonville