Nutrition Response Testing is a non-invasive assessment method used in some chiropractic and wellness practices to look at how your body responds to specific nutrients. A practitioner tests your body's neurological reflexes — the automatic responses your nervous system makes to light physical contact — and uses what they observe to build a personalised whole-food supplement plan. It is a nutritional assessment approach, not a medical test, and it does not diagnose disease.
That is the short answer. The rest of this guide explains how a session actually works, what the supplements are, who tends to ask about it, and — just as importantly — what it is not.
How Nutrition Response Testing works
The method follows the same four steps each time, whether it is your first visit or your fifth.
- A full health history. Before anything else, the practitioner goes through your symptoms, your diet, your lifestyle and what you are hoping to change. Much of what shapes a plan comes out of this conversation rather than the assessment itself.
- A non-invasive reflex assessment. The practitioner applies light contact and observes how your body's neurological reflexes respond. Nothing is injected, drawn, or swallowed. Most people describe it as unremarkable to sit through.
- A personalised whole-food supplement plan. Based on what the assessment and your history suggest, the practitioner puts together a targeted plan built around whole-food supplements rather than a generic multivitamin.
- Follow-up and adjustment. You come back, the practitioner reassesses, and the plan changes as you do. A plan that never changes is not really a plan.
What a first session involves
A first Nutrition Response Testing session usually runs 45 to 60 minutes, because most of it is conversation. Follow-up sessions are shorter — typically 20 to 30 minutes.
You stay fully clothed. There are no needles and no lab work as part of the assessment itself. If your practitioner thinks something needs medical investigation, the right answer is a referral to your physician, not a supplement.
What the supplements actually are
Propper Chiropractic builds plans around Standard Process whole-food supplements, which are made from concentrated food rather than synthetic isolates and are only available through healthcare practitioners rather than off a shop shelf.
That distinction matters mostly for one reason: a whole-food supplement plan is meant to be specific to you and reviewed over time. It is not a shopping list handed out at the end of a first appointment.
Who asks about Nutrition Response Testing
People generally arrive at Nutrition Response Testing after a period of not feeling right — persistent fatigue, digestive discomfort, or a run of symptoms they have not been able to connect to anything. Others come because they would rather look at nutrition before adding another prescription.
It is also used with children, since the assessment is non-invasive and nothing about it is uncomfortable.
If you are looking for a Nutrition Response Testing practitioner near you, it is worth asking how long they have used the method and how they decide when to refer a patient on. Those two answers tell you a great deal.
What Nutrition Response Testing is not
This is the part most explainers leave out, and it is the part worth reading twice.
- It is not a diagnostic test. It does not identify disease, and it is not a substitute for blood work, imaging, or any assessment your physician orders.
- It is not a replacement for medical care. If you are being treated for a condition, Nutrition Response Testing sits alongside that care — it does not displace it.
- It is not a promise of a particular result. Anyone who tells you in advance how quickly you will feel different is telling you something they cannot know.
- It is not the same as general applied kinesiology. Both work from muscle-testing principles, but Nutrition Response Testing is a specific, structured system focused on nutrition and supplement planning.
Where to go from here
If you want the practical details — what a plan costs, how insurance applies, and how to book — that all lives on our Nutrition Response Testing service page.
Dr. Adam Propper has practised nutritional testing for around thirty years, the most recent decade of it using Nutrition Response Testing, at a practice established in 1989. If you have questions before booking anything, calling and asking is free: (203) 226-1047. Saturday morning appointments are available from 8am to 10am.
Common questions
What is Nutrition Response Testing?
Nutrition Response Testing is a non-invasive assessment method that examines how your body's neurological reflexes respond to specific nutrients. A practitioner uses what they observe, together with your health history, to build a personalised whole-food supplement plan. It is a nutritional assessment approach rather than a medical test, and it does not diagnose disease.
How does a Nutrition Response Testing session work?
A session follows four steps: a full review of your health history, symptoms and diet; a non-invasive reflex assessment using light physical contact; a personalised whole-food supplement plan; and follow-up sessions where the plan is reassessed and adjusted. You stay fully clothed and nothing is injected or drawn.
How long does a Nutrition Response Testing session take?
An initial session typically takes 45 to 60 minutes, most of which is conversation about your health history and goals. Follow-up sessions are usually 20 to 30 minutes.
Is Nutrition Response Testing the same as applied kinesiology?
They share muscle-testing principles, but they are not the same thing. Nutrition Response Testing is a specific, structured system focused on nutritional assessment and supplement planning, whereas applied kinesiology is a broader approach applied to a wider range of questions.
Can children have Nutrition Response Testing?
Yes. The assessment is non-invasive and involves no needles or lab work, so it is used with children as well as adults. As with any child, anything that looks like it needs medical investigation should go to their physician.
Does Nutrition Response Testing replace medical care?
No. It is not a diagnostic test and it is not a substitute for care from your physician. If you are being treated for a condition, Nutrition Response Testing is used alongside that treatment, and a practitioner should refer you on when something needs medical investigation.
What supplements are used with Nutrition Response Testing?
Propper Chiropractic uses Standard Process whole-food supplements, which are made from concentrated food rather than synthetic isolates and are available only through healthcare practitioners. The plan is specific to you and is reviewed and adjusted at follow-up sessions.