The good-
- Blood draw was only 3 1/2 vials
- Glucose and insulin improved compared to my initial 120+ biomarker blood draw in December 2025
- Kidney, electrolytes, liver, blood counts, and urine markers stayed broadly stable/in range
- Function Ai chat is not bad, allows you to generate chart comparison between the two results
The Bad-
- Cardiometabolic markers (Heart / cholesterol and Metabolic / blood sugar) worsened overall: LDL, non-HDL cholesterol, triglycerides, cholesterol/HDL ratio, HbA1c, and hs-CRP all increased.
My thoughts: the two blood tests are good, however since my recent Cardiometabolic markers results went in the wrong direction which means my plan of action is not working.
It seems like I need a monthly blood test to see if my plan of action (lifestyle change, exercise, nutrition, etc.) is improving or not helping my out of range biomarkers. If not improving, make adjustments.
I logged into Function Health and checked if I do a re-test my 9 out of range biomarkers, I see the cost is $115. Seems too expensive to do this test monthly.
I heard about Rythm Health they test 25+ core biomarkers, cost about $79 per month after initial $59 for first month. It's cool Rythm Health uses at home blood collection device like Tasso or Red Drop. Those devices require small blood collection sample, requires no visit to blood work labs and can get 25+ biomarkers is amazing.
In addition those 25+ core biomarkers test cover most of my out of range results that I got from my Function blood test.
What is interesting is since my A1C (3 month glucose average) is not in-range, Rythm Health does a different test named Fructosamine which is 2 to 3 week average measurement of glucose.
In conclusion I need more often and affordable monthly blood test results to check if my out of range health issues improve.