Could Hidden Belly Fat Tell Me About My Brain Health?

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A Being Patient report describes a $50 DEXA scan that estimated the writer’s visceral fat and prompted a review of research on fat distribution, blood pressure and brain health. The studies cited suggest visceral fat may be associated with developing high blood pressure, while separate research links untreated high blood pressure with greater Alzheimer’s risk; they do not show that a scan diagnoses brain disease or predicts an individual’s future.

A Being Patient report describes how a DEXA body-composition scan prompted its writer to examine research linking visceral belly fat with high blood pressure, a condition associated with brain health risks. The research does not show that a fat measurement can diagnose brain disease or determine an individual’s risk of Alzheimer’s.

The report’s author, Being Patient founder Deborah Kan, says she paid about $50 for a DEXA scan at a local scanning business. The scan took about seven minutes and estimated that she had 0.41 pounds of visceral fat. The report compared her result with roughly 27,000 people in her age group. Kan notes that people who seek paid body scans may not represent the general population, which limits what that comparison can show.

Kan distinguishes the scan from an MRI: in her description, DEXA estimates visceral fat, while MRI can show where it is located. Her scan provided a measurement, not a brain-health assessment. She also says she cannot tell whether her running accounts for her low result.

To explore possible health implications, the report points to a University of Texas Southwestern Medical Center study that followed 903 Dallas residents for seven years. Participants began with normal blood pressure, and researchers used imaging to map fat distribution. About one-quarter developed high blood pressure. Body weight was associated with who developed it, but after researchers accounted for fat location, visceral fat was the fat type that remained associated, according to the report.

How Fat Distribution Relates to Blood Pressure

The potential relevance to brain health runs through blood pressure and blood vessels, rather than through a direct link between a scan result and Alzheimer’s. High blood pressure can damage blood vessels around the brain. The report cites a 2024 study of more than 31,000 older adults in 14 countries, which found untreated high blood pressure was associated with a 42% higher chance of developing Alzheimer’s. It also reports that this additional risk was not seen among participants whose blood pressure was controlled.

Those findings make blood pressure a more immediately actionable issue than trying to interpret a single visceral-fat estimate. But the studies describe associations at group level; they do not establish that visceral fat causes dementia, or that reducing it will prevent Alzheimer’s. A consumer scan may prompt questions about health, but the report does not establish it as a screening tool for cognitive decline.

The report’s practical takeaway is to pay attention to blood pressure, which can be high without noticeable symptoms. Dr. Nate Chin, a geriatrician and medical director of the Wisconsin Alzheimer’s Disease Research Center, told Kan that monitoring blood pressure is the “best window we have into the brain.” His advice, as recounted by Kan, was to use a cuff several times a week and keep readings in the normal range, below 120 over 80. Individuals should discuss personal readings and health decisions with a qualified professional.

What the Scan Can and Cannot Show

Visceral fat is fat stored deep in the abdomen around internal organs, unlike fat just beneath the skin. The Being Patient report describes it as a possible marker of broader metabolic and cardiovascular concerns. Its scan report listed links with heart disease, type 2 diabetes and certain cancers; those statements are presented as the scan report’s general information, not as a diagnosis for Kan.

The Dallas study adds evidence about fat distribution and the development of high blood pressure, but the report does not provide the study’s full methods, effect sizes or details about adjustments beyond body weight and fat location. It also mentions other research suggesting fat around the kidneys could affect hypertension, while stressing that more research is needed to understand that relationship.

The brain-health connection comes from a separate body of evidence about hypertension. The 2024 study cited in the report examined older adults across 14 countries and compared Alzheimer’s risk by blood-pressure status. Its reported 42% figure applies to the study population and comparison described; it is not an estimate of the risk facing any one person based on a belly-fat scan.

““I can’t tell you whether running is the reason.””

— Deborah Kan, Being Patient founder and report author

Limits of the Evidence and Scan

The report does not establish that visceral fat directly causes high blood pressure or brain disease. The Dallas findings show an association in a group followed over seven years, while the Alzheimer’s findings come from a separate study of older adults. Those results cannot be combined into an individual prediction from a DEXA measurement.

It is also unclear how closely the scan’s comparison group represents the broader population, since Kan speculates that people paying for scans may be more health-conscious. The report does not explain the scan’s measurement uncertainty, how its age-group reference was constructed, or what amount of visceral fat would change a person’s clinical care. It says an MRI can show fat location, but offers no evidence that either imaging method should be used to assess dementia risk.

Finally, the report does not describe whether reducing visceral fat changes Alzheimer’s risk. It notes that zero visceral fat may be unrealistic or unnecessary, particularly for someone with a low measurement. The reported evidence supports attention to cardiovascular health, not a promise that a specific scan result or intervention will protect cognition.

Blood Pressure Is the Practical Focus

Kan says the scan’s most useful effect for her was prompting closer attention to blood-pressure monitoring. Chin advised checking with a cuff several times a week and aiming for readings below 120 over 80, as recounted in the report. That advice is not a substitute for individualized medical guidance; people with concerns or readings outside their clinician’s recommended range can discuss next steps with a qualified professional.

The report identifies no planned follow-up study or clinical milestone. Further research would be needed to clarify how visceral fat contributes to hypertension, whether fat around the kidneys plays a role, and whether changes in fat distribution affect later brain outcomes. For now, the evidence described supports treating the scan as a prompt for a broader health conversation—not as a measure of brain health.

Key Questions

Can a DEXA scan tell whether I will develop Alzheimer’s?

No. The report describes DEXA as estimating visceral fat, not diagnosing brain disease or predicting an individual’s Alzheimer’s risk.

What did the Dallas study find?

Researchers followed 903 people for seven years; about one-quarter developed high blood pressure. According to the report, visceral fat remained associated with that outcome after researchers accounted for where fat was carried.

How does blood pressure relate to brain health?

The report says high blood pressure can damage blood vessels around the brain. It cites a 2024 study in which untreated high blood pressure was associated with a 42% higher chance of Alzheimer’s among more than 31,000 older adults across 14 countries. This is a study-level association, not an individual forecast.

Should I try to eliminate visceral fat?

The report does not say that zero visceral fat is necessary or achievable, and it does not show that reducing it prevents dementia. Discuss personal health goals and scan results with a qualified health professional.

Source: rss