Measure your body composition with a DEXA scan

KALOS is a personal training company that performs DEXA scans and designs scientifically derived "A/B tests" for your body based off your results.

Book a free assessment

Your 30-Minute Session
at 98 Battery Street, SF

DEXA Scan

A full-length body composition scan on a 2024 DEXA machine.
(5 min)

Expert Interpretation

In-person review of your results with a certified personal trainer, including your body's top strengths and weaknesses.
(10 min)

Recommended "A/B Test"

Customized exercise & nutrition "A/B test" specifically designed by your trainer for your body. All tests are metabolically derived from your DEXA results.
(15 min)

Priority Access

Priority access to our virtual network of personal trainers, dieticians, and nutrition coaches in between scans to ensure you're on the right track.

About DEXA

The most sophisticated picture of your body


DEXA scans are the world's most accurate method of measuring your body fat, muscle mass, and bone strength.

They have been used in healthcare settings since the 70s, but have exploded in popularity over the past 5 years within the longevity community.

DEXA allows us to "A/B test" our health. It allows us to test the impact of intermittent fasting or bench pressing or being vegan on our body.

KALOS is a personal training company that specializes in designing exercise & nutrition A/B tests for our clients.

We perform your scan, analyze your results, and tell you the top 2-3 things you should be doing to improve. Then we track your progress over time, iterating on your progress either monthly or quarterly.

Trusted by the best

"We are really adamant that our patients get DEXA scans at least once a year. I think it’s a very important thing to be doing."

Peter Attia, M.D.
Author, Outlive

“In 5 minutes, DEXA gives a crystal-clear picture of mass imbalances that even outstanding physical therapists can miss after hours of observation."

Tim Ferriss
Author, The 4-Hour Body

"My DEXA scan this year had the lowest body fat on the team. It feels good to be competing with running backs on body fat."

Nick Bosa
Defensive End, San Francisco 49ers

Why DEXA Matters

Our first cohort of users begins May 2024. We're located at 98 Battery Street, San Francisco.

Book a free 30-minute assessment with one of our trainers today to see if KALOS is a fit for you.

Book a free assessment