Cellular Nutrition Assay

The Cellular Nutrition Assay (CNA) includes:

  • 55 micronutrient insufficiencies
  • 49 individually beneficial antioxidants
  • Nutrient status

$375.00

Cellular Nutrition Assays

Customize your foods, diet & supplements

Test 104 micronutrients, botanicals, and antioxidants to nourish and protect your body at the cellular level. This test can also be used to customize supplements and/or I.V.’s.

This test may help with:

  • Providing specific food & supplement recommendations to fill in nutrient gaps
  • Providing a base for customized supplements and I.V.’s
  • Existing and chronic disorders
  • Performance & sports nutrition optimization, anti-aging, weight management
  • Women’s and Men’s health 
  • Improving mental outlook, sleep and increasing energy
  • Woman – middle age: “Even though I have always eaten well and supplemented with vitamins and minerals, I struggled for years with fatigue. The CNA identified that I was not getting enough and the right forms of B vitamins, vitamin E, and a few amino acids. I have started to eat  more protein sources and changed my supplement routine. My energy is better and I noticed that my focus has also improved.”
  • Woman – middle age: “My doctor recommended the CNA together with the Alcat Test because no tests helped my skin rash. I was amazed that my skin problems were gone after only 6 weeks and I feel much better. Some fruits, veggies and casein were reactive in my Alcat list. I was missing vitamin E and K. You can’t guess – I found out what “healthy” means for me only after I got tested!”

If we could give every individual the right amount of nourishment and exercise, not too little and not too much, we would have the safest way to health. (Hippocrates)

People are often confused as to whether or not their supplements are truly benefiting them. This test answers those questions. 

Micronutrients counteract stress and improve resistance to environmental pollution, toxins, and drugs, which varies from person to person. Many factors, such as lifestyle, genetics, pregnancy, recent infection, sleep patterns, overexertion in sports, age, gender, and other factors may play a role in your nutritional status and needs. 

The Cellular Nutrition Assay (CNA) reflects how your immune cells respond to and are protected by specific micronutrients and antioxidants all of which is based on your biochemical individuality. 

Thus, the CNA tells you what your cells need.

Everybody’s nutritional needs are different. The Cellular Nutrition Assays (CNA) examine how your cells respond to specific nutrients – not just whether you are within “normal population ranges”. The CNA provides the basis for personalized foods and supplements tailored to your unique needs.

  • Identify micronutrient insufficiencies: cellular micronutrient status; 55 vitamins, minerals, amino acids, and other nutrients
  • Cell stress testing: your cells’ ability to resist oxidative stress (redox)
  • Cell Protection testing: particularly beneficial antioxidants for you: 49 antioxidants, botanicals, phytonutrients, anti-inflammatory, nutrients, fatty acids, and enzymes 

The Previ Expert Package will take into account all laboratory findings for your personalized diet and supplement plan.

Nutrient stores in cells reflect long-term nutritional status and have the most functional impact. We analyze the direct response of your immune cells (lymphocytes) when individual micronutrients are added to them. When we see increased metabolism of your immune cells it may indicate a micronutrient insufficiency. 

The Redox Assay or your “cell stress test” reflects your antioxidant capacity, in other words, your cells’ ability to resist oxidative damage.

The cell protection part of the test indicates which nutrients should be considered to protect your immune cells, resist oxidative damage, and improve your overall antioxidant capacity (Redox).

Results are actionable, easy to understand, and meaningful.

A simple blood draw is needed.

Nutrients are highlighted according to your cellular responses. Descriptions of each “insufficient” nutrient and “protective” antioxidant are provided along with specific foods to emphasize in your diet.  

We recommend that this test be used as part of a comprehensive nutritional assessment with individualized guidance as provided with the Previ Expert Package. 

The Previ Expert Package is a comprehensive Lifestyle Medicine & Nutrition consulting opportunity.

Every diet, nutrition and supplement plan is unique. You benefit from the expertise of nutrition professionals using insights derived from the testing along with your medical history, medications, lifestyle, or goals to personalize nutrition and a supplement plan just for you. 

See details below.

Add on at a discount ...

Previ Expert Service

add on $349 (reg. $399)

Premium support recommended for clinical guidance, optimizing performance or special needs (needed to customize supplements).

Alcat Comprehensive Food Sensitivity test

add on $672

314 sensitivities tested

  • 200 foods
  • 114 phytoceuticals

Methyl Detox Profile

add on $248 (reg. $310)

Get insights into the methylation-detoxification ability as a reason for fatigue and tiredness. Homocysteine can be added for $75. 

64 wellness phytoceuticals

add on $122 (reg. $197)

Check 64 more medicinal herbs, functional foods, and adaptogens to avoid adverse intolerance reactions (e.g. for customized supplements).

About Previ Expert Package

1-month exceptional service leads to outstanding benefits.

Expert Highlights:

  • 100% personalized premium lifestyle medicine & nutrition
  • Includes clinical guidance & practical recources
  • Customized supplement plan (or create all-in-one supplement)

The Previ Expert Package is a comprehensive Lifestyle Medicine & Nutrition consulting opportunity. 

Every diet, nutrition and supplement plan is unique. You benefit from the expertise of nutrition professionals using insights derived from the testing along with your medical history, medications, lifestyle, or goals to personalize nutrition and a supplement plan just for you. 

  • Previ Expert is especially recommended for people with existing health conditions.
  • Also those who seek deep insights or want to get a 100% personalized supplement plan (or all-in-one customized supplement) will surely benefit from these PREMIUM services.

The Previ Expert Package includes nutrition expert services for 1-month. Flexible arrangements are possible thereafter. 

  • 2 individual telehealth consultations (results review, clinical guidance, health goals, personal preferences and more)
  • 100% personalized guidance to implement your tailored nutrition and elimination diet plan
  • 100% individualized supplement plan and/or recipe for a comfortable all-in-one supplement from our partner (evaluation of options and cost/benefit factor) 
  • Access to your nutrition expert in between the sessions; Access to online resources and educational sessions; Unlimited support via our portal messaging system (responses within one business day).
  • Customized Meal Planning Tools eBooklet 

A typical session lasts around 60 minutes, but may vary based on your needs and depending on your health goals.

Your personal goals and health history will reviewed and incorporated into your treatment program. 

Exceptional service will lead you to outstanding results.

Add on the Previ Expert for $349 (reg. $399)

About functional food sensitivity testing

Let food be thy medicine! Functional food sensitivity testing at the cellular level shows how your immune cells respond to foods.

Add on Alcat Comprehensive

Food sensitivity may be associated with:

  • Gastrointestinal complaints: IBS, diarrhea, constipation, flatulence, inflammatory bowel disease (4-6)
  • Metabolic function: Overweight, diabetes, high blood pressure, thyroid dysfunction (6, 27-31)
  • Skin problems: eczema, acne, inflammatory rashes, psoriasis (6-11)
  • Neurological diseases: Migraine, chronic fatigue, depression, unspecific anxiety, ADHD/ADD (5,6, 14-24, 39-45)
  • Joints: Rheumatism, arthritis, aching limbs, fibromyalgia (6, 12, 32)
  • Respiratory complaints: Asthma, chronic stuffy nose, recurrent sinusitis ([6, 9, 10, 12, 25, 26)

The impact of food sensitivity is easily underestimated. The Alcat Test uncovers how food, even supposedly healthy foods, may affect your wellbeing.

  • I was so excited to have lost weight, felt great and was able to eliminate taking my diabetes and blood pressure medications. I will be 82 years old in August. I dance two or three days per week. No one believes my age. Zelda from Florida
  • […] This testing methodology has been the key to resolving many patient’s long standing complaints, including dermatologic issues, fatigue, headache, joint and soft-tissue pain, gastrointestinal discomfort, and much more when other diagnostic testing and treatment intervention had failed. David Brady, ND, CCN, DACBN
  • […] it has truly changed lives. With the utilization of this testing and following the elimination diets I have seen numerous cases of severe irritable bowel syndrome completely resolve. Lifelong eczema disappears. Joint pain improves associated with arthritis as well as idiopathic joint pain. People are able to lose weight when they have tried everything else with no results. ADD and ADHD kids are more focused not requiring medication or can at least lower the doses. Crohn’s disease disappears. These are just a few of the positive outcomes I have seen. The Alcat Test is […] is absolutely essential in treating underlying causes of diseases. Laura Miles, MD

Are you confused by all the dietary advice? Gluten-free, Paleo, dairy-free, no nightshades, no caffeine, vegan, no grains… ever feel like you’re constantly trying to pinpoint which foods you should and shouldn’t eat? 

You are unique. One way to personalize your diet with the foods that are right for you is to take the Alcat functional food sensitivity test.

This anti-inflammatory diet may support the immune system, detoxification and metabolism – a prerequisite for health, wellness and performance. 

Our functional food sensitivity is a biological immune cell activation. Detected cell changes in volume, size and number are associated with cell activation potentially causing inflammation.   

Immune cell activation is the cause of inflammation

The immune system is a double edged sword. It should react appropriately and protect against infection when confronted with harmful invaders.

The above figure shows the defense reaction of an immune cell (neutrophil/eosinophil granulocyte) causing inflammation. Beside pathogens such reactions can also be induced by foods, toxins or chemicals. The scientific term is DAMP, danger/damage associated molecular pattern. Adverse reactions to foods are found to be a factor in chronic and cardio-metabolic diseases, or autoimmunity. 

The Alcat Test does NOT measure “true” food allergy classic allergy type 1) where symptom onset is immediate and acute. The Alcat Test identifies foods which may cause delayed type hypersensitivities that are usually chronic and low grade. Therefore, you may not be aware that chronic symptoms may be associated by foods regularly consumed.

A review of test results with your Previ Nutrition Counselor is included.

Your blood sample is sent to the laboratory. The sample first goes through a multi-step quality assurance process. During testing, your immune cells are confronted with foods and/or items including additives, colorings, molds, medicinal herbs, and chemical agents.

After testing, the results are presented in a clear and easy to read color-coded format, showing you which foods/substances to which your cells had a severe, moderate , mild, or no reaction.

A suggested dietary rotation plan is provided. The test result review is included. 

Add on Alcat Comprehensive for $672

About Methyl Detox Profile

The methylation-detoxification profile is a genetic test for important metabolic pathways, detoxification, and hormone balance.

Add on Cellular Nutrition Assays

The genetic test may help with:

  • Improving metabolism,  detoxification & energy
  • Healthy weight, metabolic syndrome, diabetes
  • Improving mood, fatigue, depression, anxiety, panic, insomnia
  • Cardiovascular and musculoskeletal disorders

More than 50% of people may be affected by genetic variants in the methylation pathway. Fortunately gene variants can be supported with proper nutrition and the right supplementation. 

  • Tony: I suffered from cardiovascular symptoms and wasn’t doing well with medications. I suffered also from strong fatigue, mood swings and depression, and was overweight. The Methyl Detox Profile identified high homocysteine and mutations of the MTHFR, COMT, and AHCY genes. The nutrient test showed exactly the right forms of B vitamins I should take and some beneficial antioxidants. I am feeling so much better! I lost weight, energy is great, and I reduced medication which I tolerate better. I can finally thrive again!

Methyl groups can act as gene regulators. They are biochemical on-and-off switches of gene expression. They control enzymatic reactions, impact mood and neurotransmitter balance, protect against chronic degenerative disease by reducing inflammatory processes, transform toxins into forms that are more readily excreted, impact tissue healing, and protect cells from oxidative stress.

Thus, methylation can play an important role in many health conditions.

You’re unique. Eat like it.

Vitamins, minerals, nutrients, coenzymes, and botanicals can only do their job as desired on the basis of functioning methylation.

Essential processes of the body to maintain health and self-healing are influenced by methyl groups. If methyl groups are in short supply, the body has difficulty controlling these functions. You become ”out of balance”.

Identifying your genetic variants can help determine what nutrient support you need.

The Previ Expert Package will take into account all laboratory findings for your personalized nutrition and supplement plan. 

The Methyl Detox Profile test components:

  1. MTHFR (MTHFR C677T, MTHFR A1298C) / “Initiator of methylation”: The purpose of the MTHFR gene is to encode for the MTHFR enzyme which is the driver of the production of folate. Variants in the genes involved in methylation can impact the development of chronic disease. Nutrition intervention supports methylation and promotion of optimal health.
  2. MTR (MTR C3518T, MTR A27656G) / “Amino acid balance”: The MTR gene provides instructions for making an enzyme called methionine synthase which plays a role in processing amino acids, the building blocks of proteins. Methionine synthase converts homocysteine to methionine using methylated vitamin B12. Inflammation and elevated homocysteine levels can increase the risk of CVD.
  3. MTRR (MTRR A66G) / “Protein processing”: The MTRR gene codes for the important enzyme, methionine synthase reductase (MSR) which is required for the proper function of methionine synthase (see MTR). Both genes act together to convert homocysteine to methionine. Variants can be involved with the development of cancers, Parkinson’s disease, depression, hypertension and many others.
  4. COMT (COMT G472A, COMT G304A) / “Restoring hormone balance”: By metabolizing stress hormones and neutrotransmitters, the COMT gene is directly responsible for bringing your heartbeat down to normal levels and restoring a sense of balance both to your physiological and your psychological self.
  5. AHCY (AHCY g.G32878481C, AHCY C112T, AHCY G367A) / “Maintainer of methylation”: AHCY is the only enzyme known and crucial to convert S- Adenosylhomocysteine (AdoHcy) to homocysteine and adenine to maintain optimal methylation potential. Studies show a link between variants in this gene with poor methylation potential and severe myopathies, developmental delays and hypermethioninemia.

The genes are analyzed using real time SSP-PCR (polymerase chain reaction with sequence-specific primers) followed by melt curve analysis.

  • Homocysteine (amino acid) / Biomarker for methylation status can be added for $75 to the gene profile 
    High homocysteine levels may indicate an insufficiency in vitamin B6, B12, and/ or folate. Elevated homocysteine levels can contribute to arterial damage and blood clots in your blood vessels and are well known risk factors for chronic disease, particularly cardiovascular, diabetes and neurodegenerative disorders. (Blood draw needed)

The methylation process and the functional status of the methylation pathway is profound and complex.

The Methyl Detox Profile provides an easy-to-understand test report which is both clear and patient friendly.

A simple swab sample or blood draw is needed.

Test results include expert clinician commentaries and include personalized recommendations for diet, nutrient supplementation, or IV nutrient therapy.

We recommend that this test be used as part of a comprehensive nutritional assessment with individualized guidance as provided with the Previ Expert Package. 

Add on Methyl Detox Profile for $248 (regular $310)

About intolerance to phytoceuticals

Test your compatibility to medicinal herbs and functional foods

The test may help to

  • Rule in or rule out adverse reactions to phytoceuticals
  • Existing chronic conditions  
  • Optimize supplement routine, use of cosmetics or your choice of functional foods
  • Improve performance, digestion, weight management
  • Women’s health (especially valuable to individualized menopause treatments)
  • Men’s health (especially valuable to individualized andropause treatments)

Medicinal herbs, functional foods and botanicals are widely used in supplements, teas, creams, tinctures, cosmetics… even in functional foods, e.g. protein bars.

The potency of botanicals is easily underestimated. Our testing uncovers how the intake of supposedly healthy food supplements or natural medicine may actually impede your health goals because they may not be compatible:

  • A middle-aged man by excluding grape seed extract (found in OPS supplements) to which he was reactive on the Alcat Test experienced significant symptom relief 
  • In another case a young woman who was frequently drinking mate tea was found to be highly reactive on the test. When she avoided the mate tea her persistent digestive complaints went away
  • A middle-aged woman who was using skin care products with aloe vera turned out to be reactive in the Alcat Test. When she stopped using aloe vera containing products the appearance of her skin improved dramatically. 

Taking the “extra vitamin kick” or botanicals does not always have the beneficial effect that is hoped for. The active ingredients are very potent and should not be underestimated.

The biologically active plant ingredients in adaptogens are intended to help people “adapt” to increased physical and emotional stress. Adaptogens can even have multiple beneficial effects, e.g. simultaneously calming and vitalizing or stress-reducing and performance- enhancing. So, it is important that you use the right ones for you.

The functional Alcat sensitivity test evaluates if immune cell reaction against phytoceuticals are present. If an excessive cellular immune response (sensitivity or intolerance) is identified, the consumption should be avoided.

So that you get the most out of taking supplements, medicinal herb or functional food it is important to determine whether a substance is a friend or foe of your immune cells.

If you show a reaction in your Alcat Intolerance Test to medicinal herbs or functional foods, you should definitely avoid the substance affected.

Your Previ Expert counselor will take into account your lab findings to provide you with a personalized nutrition and supplement plan.  

Functional phytoceutical intolerance testing

This highly specialized functional Alcat phytoceutical sensitivity test is based on the same principle as that of the Alcat Test for food sensitivity,  to assess whether immune cell reactions are present or not. If a “foe” is identified in form of an excessive cellular immune response (intolerance), the intake should be avoided.

Phytoceutical intolerance test results are easy to understand, actionable, and meaningful.

A simple blood draw is needed.

Alcat Test results are categorized by your individual degree of cellular reactivity (severe, moderate, mild, or non-reactive) and reported in an easy to read color-coded format.

For this highly specialized test panel we recommend that this test be used as part of a comprehensive nutritional assessment with individualized guidance as provided with the Previ Expert Package. 

Add on phytoceutical sensitivity testing $122 (reg. $197)

How it works

1) Choose Your Test

We are here to support you at every step. Receive your test test kit and have your blood drawn at a lab or in the convenience of your home or office.

2) Get Your Results Within Days

Test results will be provided in digital format via secure mail. Complete your Health Questionnaire forms on our safe patient portal.

3) Meet With A Nutrition Expert

Ready? Your PreviMedica nutrition expert provides individualized guidance based on your test results and needs. Get customized supplements with the “Previ Expert package”.

4) Become A Healthier You!

Your are unique. With PreviMedica’s functional lab tests and nutrition guidance you will know which foods and supplements are good for you and your body will love it!

Credibility of our lab tests

Functional Laboratory Testing aimed at personalized nutrition and prevention of chronic inflammation and autoimmune disease.

Functional testing can meet your unique needs and does not use population average standards. Instead, each test serves as its own baseline.

The Alcat food sensitivity or intolerance test identifies adverse reactions to dietary items. Especially innate immune cells are a reliable indicator of a pro-inflammatory reaction – they cause, initiate and maintain inflammation.

Immune cells can also be used as a biomarker for the absorption and metabolism of nutrients. The Cellular Nutrition Assays (CNA) show which nutrients, botanicals, antioxidants etc. are insufficient and which are beneficial for an individual.

The functional nutrition tests can be complimented using indicators or risk assessment for disease processes: for example, CICA for intestinal complaints or the telomere length test to determine the ratio between actual age and the so-called biological age. 

Cell Science Systems (CSS) was the clear winner of the prestigious Frost & Sullivan Award, which was granted only once in 2016.

These points were particularly highlighted:

  • High quality of customer service 
  • Great patient benefits from lab testing and improvement of symtoms 
  • Scientific approach and ongoing studies

Frequently asked questions

You can expect your test kit to arrive in 3-5 business days, depending on where you reside. 

You can order directly through our website or call PreviMedica for a consultation and one of our doctors will order the test for you. There is no additional charge.

No. Fasting is not required. However, we recommend NOT taking any medications or supplements at least 4 hours prior to the blood draw.

There is no need to discontinue medications, supplements, or make any dietary changes prior to any test. Medication, supplementation, and dietary intake will not impact any of our tests.

CICA results are available online within 7-10 business days after the specimen is received in the laboratory. 

You will be notified via email when your specimen arrives at the laboratory with notification of when to expect your results. Once your results are ready, they will be uploaded to our secure portal and you will receive an email notification indicating your results are ready for you to view. Please follow the instructions to start your account on the PreviMedica portal.

If you have decided not to proceed with testing, please inform your program advisor, in writing, within 30 days of your purchase. Please return the test kit at your expense to:


      Cell Science Systems/PreviMedica
      852 South Military Trail
      Deerfield Beach, FL 33442


Once we receive the returned kit, a refund will be processed less the $75.00 cancellation fee and shipping if applicable.
Please DO NOT use the FedEx shipping bag to return the kit. If the bag/label is used, an additional fee of $28.00 will also be deducted from your refund amount.

For cancellations after a specimen has shipped to the lab, the cancellation fee is $125.00 to be deducted from the amount to be refunded.

No refund will be issued if a request to cancel is received after 90 days from the test order date. You have the option to use credit toward another test or to transfer the original test ordered to a family member or friend as a gift. Specimens for new or gifted tests must be received within 30 days of this request.

With every test offered by PreviMedica, you will be eligible to receive a complimentary 30-minute phone or video consultation with a member of our support team to discuss test results. To request an appointment for a complimentary session, please complete this form: https://cellsciencesystems.com/resultsreview 

No, insurance plans do not reimburse for this test, currently. However, you may be able to use your FSA or HSA to pay for the test.

Each tube must be filled to capacity. Failure to do so may require recollection.

PreviMedica’s nutrition advisors are eager to be on your health care team for as long as you need. To continue benefiting from monthly memberships, please contact us.

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