Nutrition Response Testing

What if you could easily achieve a whole new level of health?

My 3-year-old son was covered in eczema and it was only getting worse, he was so cranky. He was tested by an allergist and was told that Milk was not a problem. When Dr. Castaldi tested him, he found a severe milk sensitivity in addition to heavy metals. After a few weeks of having Axel on the nutrition his skin is completely clear!                                                                                                                               - C. Ezra

I felt like I was dying. Dr. Castaldi found out that my underlying problem was wheat, corn and soy. This was causing my digestion condition which was being treated with drugs and not helping. I felt horrible! After about a week of detox and natural enzymes, I feel like a brand-new person. It’s been 5 months since I started the program and I continue to feel amazing and no longer take medications.                          - M. Morrison

I am very happy because after 10 years of struggling with Fibromyalgia, doctors and specialists the nutrition program Dr. Castaldi has me following is really helping! After being on the program for 2 months I do not have pain anymore. I highly recommend Dr. Castaldi for anyone suffering from this debilitating disease.                                                                                                                                                      - J. Beckles

         (the testimonials above are results he achieved specifically with Nutrition Response Testing-please see our testimonials page for many more!)

Nutrition Response Testing is a non-invasive system of analyzing the body to determine the underlying causes of ill or poor health. With Nutrition Response Testing, we address the root cause of the issue – not just the symptoms. This technique is also a form of applied kinesiology or otherwise known as “muscle-testing”.

Nutrition Response Testing works by allowing your own body to communicate where and why imbalances are occurring internally and causing symptoms of poor health. Dr. Castaldi scans your body using a specific form of muscle testing called Nutrition Response Testing to check the health of your glands, such as the thyroid, and also the major organs: heart, liver, lungs, kidneys, pancreas, etc.

Energy flows exist between all parts and organs of the body. In traditional Chinese Medicine these energetic pathways are known as “meridians”. The Nutrition Response Testing procedure is performed testing your extended arm with one hand and contacting a specific reflex area with the other hand. If the tested reflex is stressed, your autonomic nervous system will kick in and will respond by reducing energy to the extended arm (meaning the arm will weaken and drop). This “drop” of your extended arm indicates underlying stress or dysfunction in that specific area of your body which can be greatly affecting your overall health. These energetic flows can become disrupted by major stressors including  chemical toxicities (found in our environment), hidden food allergies or sensitivities, heavy metal toxicity, scar interferences, immune challenges, dental problems and auto immune disturbances. When these stressors accumulate in our body they can build up as toxins over time and start to impair the function of major endocrine/metabolic glands and organs that are crucial to our health. 

Once we discover the underlying issue and where it is affecting your body, we test to see what nutrients you are lacking due to this toxin overload. When your body receives the proper amount of nutrients in the forms of whole food essential minerals, vitamins and antioxidants, many imbalances in your body come back into balance. When that happens, symptoms lessen and are able to heal and, in most cases, disappear.

How does this program benefit you?

Nutrition affects all of our body’s functions in all states of health or ill-health. In fact, if you aren’t feeling as well as you think you could, the answer probably lies in the way your body is handling its food. Nutritional weaknesses may lead to a break down in resistance and immunity, leading to chronic symptoms like low energy, hot flashes, digestive issues, food cravings, and aches and pains. Each cell, tissue, and organ in your body is in the process of replacing itself every day, month and year. This means that you can improve your health.

If you don’t feel like yourself or you would just like to maintain your great health, this program may be for you.

Contact Us Today!

We look forward to hearing from you.

Our Location

440 White Plains Road, Suite 200 | Eastchester, NY 10709

Office Hours

Our General Schedule


10:00 am-1:00 pm

3:00 pm-6:00 pm




10:00 am-1:00 pm

3:00 pm-6:00 pm




10:00 am-1:00 pm

3:00 pm-5:00 pm


10:00 am-1:00 pm