Explore lab tests

Monthly monitoring of muscle mass and body composition in patients on GLP-1 medications

"I've got patients on low-dose GLP-1s and I've said, 'Look, you have to be in the gym, you have to do DEXA scans every month, you have to eat this protein.' And they do it and it's quite amazing — the weight will go down, but they'll actually increase their ..."

Mark Hyman, MD

Measuring muscle mass, appendicular lean mass index (ALMI), and fat-free mass index (FFMI) to track body composition

"If people are doing DEXAs to measure their muscle mass, what metrics are they looking at on a DEXA and what percentile do you like to see them at? We look at appendicular lean mass index and fat-free mass index."

Peter Attia

Comprehensive blood testing including ApoB, insulin resistance scores, lipid particle counts, and metabolic markers for patients and the general public

"With Function Health, we're basically doing a dollar a day. You can get all this stuff done twice-yearly testing and get a really deep view — not just of your lipids, but also metabolic health. And that's what we do with everybody. We're seeing it's a huge ..."

Mark Hyman, MD

Comprehensive brain and Alzheimer's biomarker testing for patients

"We do that with Function Health. We now have all the whole brain biomarkers on Function and it's amazing — we're seeing people using them and then able to act on them."

Mark Hyman, MD

Baseline and ongoing monitoring of insulin resistance before and during GLP-1 therapy

"Serum insulin, I think. I used to catch hell from my colleagues and they're like, 'Why are you testing everyone's serum insulin? You think everybody's metabolically compromised?' I'm like, 'They are.' And here we are. I want to see fasting serum insulin. If..."

Tyna Moore

Detecting insulin resistance as a key cardiovascular risk factor, even in outwardly healthy individuals

"Knowing your hemoglobin A1C and some form of fasting insulin is just really, really important. Mine had never been measured — and here I am, a cardiac surgeon — and probably the most important predictor of whether you're going to get a heart attack is your ..."

Jeremy London

Assessing ovarian reserve in women with endometriosis or those planning future conception; guides decisions about egg freezing timing

"It's reasonable to do an AMH — check your reserve. How is your ovarian reserve? AMH, antral follicle count — very important. Disease phenotype: do you have endometrioma? This is a very special phenotype which can lead to lower ovarian reserve."

Renato Tomioka

"Everybody should get an AMH test. I think it's a very important marker. If you are listening to this and you want kids one day, ask your doctor for this test."

Natalie Crawford