How it works
A careful process, built around you.
Gut Rest Diagnostics follows a deliberate, remote-first path — from your first case review to an individualized plan and the follow-up that refines it. Every step exists to separate what you're feeling from what's actually driving it.
The approach
Understanding first, then a plan.
Most gut problems get managed at the surface. We work the other way — measure how your digestion actually behaves, then build from what the data shows.
Measure, don't assume
We look at how your digestion is working before building any plan — objective data over guesswork.
One person at a time
No templates off a shelf. Your history, your data, your plan — built from your case alone.
Remote-first by design
Most of the work happens by video, wherever you are. In-person assessment in California by arrangement.
The process
Five steps, start to plan.
A clear path with no surprises. Here's exactly what each step involves and what you walk away with.
Before we meet
Case review
You complete an intake and share your history, prior labs, imaging, and the symptoms you've been living with. Dr. Erdman reviews it all ahead of time, so your first session starts with substance — not paperwork.
The working session
Consultation
A thorough video session. We walk your timeline, map how your symptoms connect, and identify the patterns worth investigating. You leave understanding what we're looking at and why — and which assessments, if any, will actually change the plan.
Only when it matters
Assessment
Targeted testing — including the Heidelberg pH assessment, at-home kits, or in-person evaluation — ordered only when the result will shape your plan. Measurement with a purpose, not a fishing expedition.
Built from the data
Structured plan
A clear, individualized plan — sequenced, prioritized, and explained. You know what to do, in what order, and why each piece is there. Built around what your case shows, never a generic protocol.
Over time
Follow-up
Your body responds, and the plan adapts. Scheduled follow-ups track what's working, adjust what isn't, and keep you from guessing the next step. A partnership over time — not a one-off appointment.
The Heidelberg pH Capsule is a Class I, 510(k)-exempt, preamendments device, classified under 21 CFR §876.1400. It supports assessment of gastric acidity and aids in the evaluation of hypochlorhydria, achlorhydria, and hyperchlorhydria.
Remote-first
Care that comes to you.
You don't need to travel to get a careful, data-driven look at your digestion. The practice is built to work wherever you are.
Anywhere by video
Consultations happen over secure video on your schedule, with time zones accommodated.
Testing to your door
When an at-home kit is the right tool, it ships to you with clear instructions for return.
In person in California
For assessments that call for it, in-person evaluation is available in Los Angeles by advance arrangement.
In-person, by arrangement
Gut Rest Diagnostics
2080 Century Park East, Suite 1804
Los Angeles, CA 90067
Start here
The first step is a conversation.
A discovery call is a relaxed, no-pressure way to talk through what you've been experiencing and see whether we're a good fit. Remote anywhere; in-person in California by advance arrangement.