Body Composition TestingWhat the Scale and BMI Can't Tell You
Scale weight and BMI can look completely normal while body fat percentage and visceral fat are quietly elevated. This combination drives fatigue, stubborn weight gain, blood pressure changes, and metabolic risk that a bathroom scale will never reveal. Two people at the same weight can carry very different amounts of fat mass and lean muscle — which means their health outlook is fundamentally different.
- Body fat percentage, visceral fat level, and lean muscle mass tell a far more complete story than scale weight or BMI alone. Two patients at the same weight can have completely different metabolic health.
- Body Balance Medical uses an in-clinic InBody body composition scanner to measure body fat percentage, lean mass, visceral fat level, and water balance in about 45 seconds.
- Visceral fat — the fat surrounding internal organs — carries cardiovascular and metabolic risk even in patients who appear a healthy weight from the outside.
- Hormones directly affect body composition: declining estrogen shifts fat toward the abdomen, low testosterone reduces muscle, and high cortisol promotes visceral fat storage.
- An InBody scan is a diagnostic measurement tool, not a treatment. Results are interpreted by licensed medical providers at Body Balance Medical.
What Body Fat Percentage Actually Measures
Body fat percentage is the proportion of your total body weight made up of fat mass versus lean mass — which includes muscle, bone, organs, and fluids. It tells you what your body is actually composed of, not just what it weighs.
This is the core issue with weight as a measurement. Two people can both weigh 180 pounds at the same height, but one may carry 15% body fat with substantial muscle while the other sits at 30% with significantly less lean tissue. Their BMI would be identical. Their health risk would not.
Total body composition breaks down into four main components:
- Fat mass: both subcutaneous fat (under the skin) and visceral fat (around internal organs)
- Skeletal muscle mass: the primary driver of resting metabolic rate
- Bone mineral content: structural support the body maintains over a lifetime
- Total body water: intracellular and extracellular fluid balance
Body fat is not something to eliminate. Essential fat supports hormone production, cell membranes, and temperature regulation. The aim is a range that supports function and health, not the lowest number possible. At Body Balance Medical, body fat percentage is interpreted alongside symptoms, lab values, and medical history.
| Category | Men (approximate range) | Women (approximate range) |
|---|---|---|
| Essential minimum | ~3 to 5% | ~9 to 11% |
| Athletic | ~6 to 13% | ~12 to 19% |
| Fitness | ~14 to 17% | ~20 to 24% |
| Average | ~18 to 24% | ~25 to 31% |
| Above average risk | 25% and above | 32% and above |
Ranges are general reference points. Individual context, age, and muscle mass affect interpretation. Discuss your numbers with your provider.
Why BMI Fails — and What Body Composition Shows Instead
BMI was developed in the 19th century as a population-level statistical tool. It divides weight by height squared and places people into broad categories. What it cannot measure is the difference between a pound of fat and a pound of muscle, how fat is distributed in the body, or how much of someone's weight is functional lean tissue versus metabolically active fat.
The "skinny fat" pattern illustrates this best: a person at a perfectly normal BMI who carries elevated visceral fat and low muscle mass. Their chart looks fine. Their metabolic risk does not.
- Weight 158 lbs
- BMI 24.8 — "Normal"
- Body fat % 33% — elevated
- Visceral fat level 12 — high risk
- Skeletal muscle mass Low for age
- Weight 158 lbs
- BMI 24.8 — "Normal"
- Body fat % 21% — healthy range
- Visceral fat level 4 — low risk
- Skeletal muscle mass Appropriate for age
Subcutaneous Fat vs Visceral Fat: Why Location Matters
Not all stored fat behaves the same way. Where fat accumulates in your body affects your health risk far more than total body fat alone.
Subcutaneous fat sits just under the skin. You can see and feel it on your hips, thighs, and arms. It is metabolically more stable and often more of a cosmetic concern than a direct internal threat. Visceral fat is different. Sometimes called active fat, it wraps around organs in the abdomen, including the liver and pancreas, and functions almost like an endocrine organ, releasing inflammatory compounds that affect insulin sensitivity and lipid metabolism.
Carrying elevated visceral fat is linked to:
- Insulin resistance and increased type 2 diabetes risk
- High blood pressure and unfavorable cholesterol changes
- Fatty liver disease
- Increased cardiovascular risk, even in people at a normal weight
A patient in Las Vegas, Henderson, or Summerlin might appear a healthy weight by BMI standards but still carry more visceral fat than is metabolically safe. An InBody body composition analysis quantifies visceral fat level directly. Notably, reductions in visceral fat often show up before large changes on the scale, making serial testing valuable for patients in medical weight loss programs.
How Body Composition Is Measured: From DEXA to InBody
Several methods exist to measure body fat and total body composition. Each involves tradeoffs in accuracy, cost, and convenience.
A DEXA scan uses low-dose X-ray to differentiate fat, lean tissue, and bone. It is precise and measures bone density directly, but requires specialized facilities, involves radiation exposure, and is typically more expensive and less accessible. Home alternatives like bathroom impedance scales, skinfold calipers, or waist-to-hip calculations provide rough estimates at best, with accuracy depending heavily on technique and consistency.
The InBody scanner at Body Balance Medical is a professional-grade bioelectrical impedance analysis (BIA) device. Validation studies show high agreement with DEXA for total fat mass and fat-free mass (intraclass correlation coefficients of 0.97 or higher). BIA tends to slightly underestimate fat percentage at extremes, but for clinical tracking the agreement is reliable. The entire process takes under 10 minutes.
What the InBody report measures
| Metric | What it measures | Why it matters |
|---|---|---|
| Body fat % | Fat mass as a proportion of total body weight | Reveals metabolic risk hidden by normal scale weight or BMI |
| Skeletal muscle mass | Total lean muscle tissue; broken out by arm, leg, and trunk segments | Primary driver of resting metabolic rate; declines with age and hormone shifts |
| Visceral fat level | Fat surrounding internal organs in the abdominal cavity | Most metabolically dangerous fat type; linked to insulin resistance and cardiovascular risk |
| Total body water | Intracellular and extracellular fluid balance | Distinguishes whether "weight gain" is fat, muscle, or fluid retention |
| Segmental analysis | Muscle and fat distribution across arms, legs, and trunk separately | Identifies imbalances and guides where to focus strength training or clinical intervention |
Inside an InBody Scan at Body Balance Medical
When you arrive at 7975 W Sahara Ave #101 in Summerlin for a body composition test, the process is straightforward. Wear light clothing, avoid a heavy meal immediately before, and remove metal jewelry if requested for accurate results.
The scan itself follows a simple sequence: check in, answer brief intake questions, step barefoot onto the InBody platform, grip the hand electrodes, and stand still for about 45 seconds. The device prints a multi-page report covering body fat percentage, lean body mass, visceral fat level, segmental muscle distribution, and total body water. That last metric is especially useful for distinguishing whether recent "weight gain" is fat or fluid retention.
Body composition reports are stored for comparison over time, so patients can track muscle gain, fat loss, and visceral fat changes even when the scale moves slowly. Mia LoPreiato, NP reviews InBody results with patients when relevant to their care plan, connecting the data to hormone optimization, weight loss programs, or other clinical priorities.
How Hormones Affect Body Composition
Body fat percentage is not solely a matter of eating and exercise. Hormones and resting metabolic rate strongly influence how your body stores fat and builds muscle.
Resting metabolic rate — the calories your body burns at rest to maintain basic functions — decreases with age, muscle loss, chronic dieting, and hormonal shifts. Higher lean muscle mass supports a higher metabolic rate, making it easier to maintain a healthy weight and harder for fat to accumulate around the abdomen.
Low testosterone in men is associated with increased visceral fat and reduced muscle mass. Estrogen decline in women contributes to abdominal fat accumulation, even in patients whose total weight hasn't changed. High cortisol from chronic stress promotes visceral fat storage. Thyroid dysfunction slows metabolic rate. These are not willpower failures — they are measurable, treatable physiological changes.
Body Balance Medical offers testosterone replacement therapy for men and Biote-certified hormone pellet therapy for women as part of broader hormone optimization programs. In February 2025, following the TRAVERSE trial, the FDA removed the TRT cardiovascular black-box warning, reflecting that properly supervised testosterone therapy does not increase cardiovascular risk in appropriately indicated men. Hormone therapy is not a shortcut for fat loss, but it addresses underlying drivers that diet and exercise alone cannot fix.
Some patients combine lifestyle changes with medically supervised compounded semaglutide or compounded tirzepatide through BBM's weight loss programs. Compounded versions of these GLP-1 medications are not FDA-approved. All prescribing is done under direct medical supervision. For more on the weight and metabolism overlap, see the weight gain and metabolism concern page.
Improving Body Fat Percentage Safely and Sustainably
The goal is not chasing the lowest possible body fat number. It is moving toward a range that supports health, energy, and function for your age and activity level.
Evidence-based strategies to reduce fat rather than muscle:
- Adequate protein intake — preserves lean tissue during a caloric deficit and supports muscle repair
- Progressive strength training — stimulates muscle growth and supports resting metabolic rate; 2 to 3 sessions per week minimum
- A moderate calorie deficit — informed by metabolic data, not extreme restriction that prompts the body to consume lean tissue
- Consistent sleep — 7 to 9 hours consistently; chronic short sleep is directly linked to visceral fat accumulation
- Stress management — addressing chronically elevated cortisol is one of the most underrated levers for visceral fat reduction
- Limiting alcohol and ultra-processed foods — both disproportionately promote visceral fat storage
Preserving lean mass during fat loss becomes more critical after age 35 to 40, when natural muscle decline accelerates. Body Balance Medical uses serial InBody scans to monitor whether weight loss is coming primarily from fat mass rather than muscle or dehydration. If lean mass begins to fall too quickly, the care plan is adjusted accordingly.
Better Balance, Better You — not perfection on a chart. Body Balance Medical works within real-life constraints rather than expecting flawless adherence.
Your Provider for Body Composition and Metabolic Health in Las Vegas
Mia uses InBody body composition data alongside lab panels and symptom history to build care plans grounded in what is actually happening rather than what the scale suggests. Whether a patient is starting a GLP-1 weight loss program, optimizing hormones, or simply trying to understand why their body feels different than it did five years ago, InBody provides a baseline for tracking change over time. Results are stored, compared at follow-up visits, and used to adjust programs so fat loss stays fat loss rather than becoming muscle loss.
Body Balance Medical is LegitScript Certified, verifying that our prescribing and dispensing practices meet applicable laws and standards. All InBody results are interpreted by licensed medical providers at our Summerlin clinic, 7975 W Sahara Ave #101, Las Vegas, NV 89117.
Frequently Asked Questions About Body Composition Testing at Body Balance Medical
Most patients benefit from retesting every 6 to 12 weeks during an active program, whether they are losing weight, building muscle, or adjusting hormones. Monthly scans may be appropriate during intensive phases to fine-tune calories, exercise, or medication dosing. Scanning more frequently than that typically creates noise from normal fluid shifts rather than meaningful data about fat and muscle change.
InBody uses a very low-level electrical current. Patients with pacemakers or certain implanted devices should inform the clinic before testing. Body Balance Medical follows manufacturer safety guidance, and an alternative assessment method may be recommended if any concern exists. Most patients with orthopedic implants such as joint replacements can be scanned safely, but final clearance is determined by your provider.
No. InBody estimates lean mass and fat mass but does not directly measure bone mineral density. A DEXA scan evaluates both bone density and body composition but is typically performed in a radiology or hospital setting. If your history suggests concern about bone health, Body Balance Medical may coordinate appropriate testing or referral.
Yes. Body composition testing is valuable for anyone monitoring visceral fat and muscle mass over time — including athletes, people starting strength training, or patients in hormone optimization programs. It can reveal gradual visceral fat accumulation or muscle loss in someone whose body weight appears stable, catching metabolic shifts before they become a clinical problem.
Directly and measurably. Low testosterone in men is associated with increased visceral fat and reduced skeletal muscle mass. Estrogen decline in women shifts fat storage toward the abdomen. Elevated cortisol from chronic stress promotes visceral fat accumulation. Thyroid dysfunction slows resting metabolism. These changes show up on InBody reports before they show up on the scale, which is one reason body composition testing is part of how Body Balance Medical tracks progress in hormone and weight loss programs. See the hormone imbalance concern page for more on these connections.
You do not need an outside referral. Baseline lab work is not required to perform a body composition test, although providers may recommend labs if results and symptoms suggest hormonal or metabolic issues. Call (702) 417-1261 for details on scheduling and how an InBody scan fits into a broader health assessment at Body Balance Medical.
See What the Scale Has Been Missing
An InBody scan at Body Balance Medical gives you body fat percentage, visceral fat level, and lean muscle mass in 45 seconds. It's the starting point for every weight loss, hormone, and metabolic health program at our Summerlin clinic — because you can't improve what you haven't measured.
Schedule Your Body Composition ScanBetter Balance, Better You