Parsley Health vs Function Health

Parsley Health is a care membership: you get a physician and a coach who order labs and build a protocol. Function Health is a testing subscription: you get 100+ biomarkers twice a year with AI summaries, and no one treats what's found.

The choice is really care versus data. If you want someone accountable for a plan, that's the membership model. If you want a wide, cheap, repeatable read on your biomarkers and you're comfortable acting on it yourself (or taking it to your own clinician), that's the lab-subscription model. They are not substitutes, which is why plenty of people end up paying for both.

Start with lab testing if your symptoms are mild and you mainly want a baseline. Start with a care membership if symptoms are already disrupting daily life and you need someone to sequence a plan.

A biomarker panel is a good first move when nothing is urgent: it's inexpensive relative to care and it gives any future clinician a starting point. Once symptoms are multi-system — fatigue plus gut plus hormones plus mood — reading your own results stops being the bottleneck. Interpretation and sequencing are.

Yes. Recent Function panels are usually accepted as the baseline, and additional panels are added only where the case needs them.

At Integrative You we routinely intake members with Function results and build from there, adding what a fixed panel doesn't cover — mycotoxins, tick-borne panels, DUTCH hormones, GI MAP, organic acids — when the history points that way. It keeps you from paying twice for the same blood draw.