At-Home Cortisol Test with Nutra Nourish
While we often discuss stress as a purely emotional or psychological state, it is, in reality, a deeply biological event that triggers a complex cascade of hormonal responses within your system. At the center of this biological system is cortisol, frequently referred to as the “stress hormone”. Despite its sometimes negative reputation, cortisol is actually essential for life. It plays a critical role in regulating your metabolism, controlling your sleep-wake cycle, and keeping systemic inflammation in check.
At NutraNourish, we use the gold-standard Genova Diagnostics Adrenocortex Stress Profile, which includes the Cortisol Awakening Response (CAR), to map your cortisol levels across the day. The test is collected at home through 4 to 6 saliva samples, and the results are interpreted by Dr. Menka Gupta to give you a clear picture of how your HPA (hypothalamic-pituitary-adrenal) axis is actually functioning.
Find out exactly what your stress hormones are doing.
Get a complete 24-hour view of your cortisol rhythm and adrenal function backed by functional medicine, interpreted by Dr. Menka Gupta.
Get To Know Dr Menka
Dr. Menka Gupta* has been practicing functional medicine since 2012 and is the first Institute for Functional Medicine Certified Practitioner (IFMCP) in South Asia. She has helped more than 5000 patients with complex and chronic health issues related to Digestive disorders, Anxiety, Depression, Chronic fatigue, Thyroid, Autoimmunity, Eczema, Autism. She has more than 25 years of experience in the health and wellness field in London and Singapore.
Dr. Menka Gupta*, MBBS, MSc, FMCP-M
IFM-Certified Functional Medicine Practitioner • 25+ Years Experience
✓ Medically Reviewed •
What is a Cortisol Test?
A test for cortisol measures the specific amount of this steroid hormone circulating in your system. The cortisol hormone produced by the adrenal glands follows a “diurnal rhythm,” meaning it changes throughout a 24-hour cycle. In a healthy individual, levels should be highest in the morning to help you wake up and lowest at night to allow for deep sleep.
While doctors can check these levels through blood, urine and saliva cortisol testing is widely considered the most effective method for functional health. Unlike a single blood draw, saliva testing is non-invasive and allows for multiple collections throughout the day.
What Causes High or Low Cortisol Levels?
Cortisol levels do not fluctuate at random; they are a direct reflection of your internal and external environment. High cortisol levels are typically driven by the body’s attempt to survive a perceived threat. Common causes include:
Persistently high levels can result in weight gain, muscle weakness, high blood pressure, mood changes, anxiety, insomnia, and impaired immunity.
Conversely, low cortisol levels reflect the body’s reduced ability to mount an adequate stress response.
Persistently low levels can result in chronic fatigue, poor stress tolerance, low blood pressure, dizziness, hypoglycemia, and an increased susceptibility to illness.
- Chronic psychological stress.
- Lifestyle factors.
- Physiological stress.
- Systemic inflammation.
- Adrenal fatigue or hypoadrenalism.
- Chronic illness or infection.
- Hormonal or endocrine dysregulation.
- Prolonged corticosteroid use.
Who Should Take a Cortisol Test?
A cortisol level test is highly recommended for anyone who feels their waking and sleeping window has disturbed. If you are experiencing persistent fatigue that isn’t resolved by sleep, you are a prime candidate for this test.
It is also incredibly beneficial for:
- ✓High-Pressure Working Professionals
- ✓Caregivers and Parents
- ✓Athletes
- ✓Those with Weight Concerns
Nutrient deficiencies tend to accelerate aging and reduce resilience, so testing is especially important for anyone optimising for long-term health rather than just managing symptoms.
If you’re nodding your head “YES” to any of these, this is for YOU.
Stop guessing. Stop relying on multivitamins that may or may not be working. Get the data, get a plan, and start feeling like yourself again.
Conditions Addressed
Which Health Issues Does It Help?
A comprehensive test for cortisol provides a window into the health of your Hypothalamic-Pituitary-Adrenal (HPA) axis. It isn’t just about whether your cortisol is “high” or “low”; it’s about the timing of the release.
Elevated Diurnal Cortisol
Flattened Curves
Reverse Rhythms
The CAR Factor: The Cortisol Awakening Response (CAR) measures the rise in cortisol within the first 30–45 minutes of waking. This is a unique marker of “stress resilience.”
Benefits of Cortisol Testing
Why Is Cortisol Testing Important?
Many people suffer from “invisible” symptoms: fatigue that coffee cannot fix, weight that will not budge despite exercise, anxiety that peaks at specific times of day, or feeling wired-but-tired at night. They are often told their standard blood work is normal, which leaves them with symptoms but no answers. This is exactly where cortisol testing becomes vital. It looks beyond basic markers to see how your body is actually functioning in real time, across the full 24-hour cycle. A single morning blood test cannot tell you whether your cortisol curve is flat, reversed, or stuck in survival mode. A four-point saliva test can. That distinction is the difference between guessing at supplements and building a targeted recovery plan, and it is often the missing piece for people who have spent years bouncing between specialists with no clear assessment.
Step-by-Step Process
Cortisol Test Procedure
How It Works
01
Enrol in the NutraNourish Cortisol Test program
02
Receive your Genova Diagnostics at-home collection kit (3 working days for Singapore clients, 1 to 2 weeks for overseas)
03
Choose a normal, representative day to collect your samples (avoid days of illness, travel, or unusual events)
04
Collect 4 to 6 saliva samples at the specified times, starting immediately upon waking to capture the Cortisol Awakening Response (CAR)
05
Avoid eating, drinking, or brushing your teeth for 30 minutes before each collection to prevent sample contamination
06
Schedule a courier pick-up, we arrange shipping to the laboratory
07
Lab analysis is completed and results are returned within 2 to 3 weeks of receipt
08
Dr. Menka Gupta personally reviews your results and walks you through them in your 1-hour consultation
09
Receive your personalised HPA axis recovery and stress support plan
How Long Does A Cortisol Test Take?
Each saliva sample takes only a few minutes to collect at home, with the full set spread across a single day. Lab results are typically available within 2 to 3 weeks of the sample reaching the laboratory, and you will receive your personalised program from Dr. Menka Gupta following her expert review of your report. Fasting is not required, but you must avoid eating, drinking, or brushing your teeth in the 30 minutes before each sample.
Your Complete Report
What Will A Cortisol Test Tell Me?
The at-home Cortisol Test gives you a complete, time-stamped view of how your adrenal glands are functioning throughout the day. Specifically, it tells you:
Together, these results pinpoint not just whether your cortisol is “high” or “low” but how your full HPA axis is behaving across the day. That is the foundation Dr. Menka uses to build your personalised stress recovery, sleep, and hormone balancing plan.
Program Inclusions
What You Get / Kit Inclusions with the Cortisol Test
Why Choose NutraNourish for Your Organic Acid Test?
- Gold-standard Genova Diagnostics testing We use the Genova Diagnostics Adrenocortex Stress Profile, a clinically validated, gold-standard kit that includes the Cortisol Awakening Response (CAR), the most important marker of stress resilience.
- IFM-Certified Functional Medicine expertise: Your results are interpreted by Dr. Menka Gupta, the first Institute for Functional Medicine Certified Practitioner (IFMCP) in South Asia, with 25+ years of clinical experience and 5,000+ patients helped.
- Root-cause approach, not symptom suppression We do not just hand you a list of adaptogens. We connect your cortisol pattern to your sleep, nutrition, gut health, hormones, and lifestyle, so the plan addresses why your stress system became dysregulated in the first place.
- Convenient at-home collection No clinic visits required. Your saliva samples are collected at home, in your natural environment where your stress actually happens, not in a stressful clinical setting that distorts results.
- Personalised plan, not a generic stress protocol: Every plan is built around your specific cortisol pattern, lifestyle, and health goals, including pharmaceutical-grade adaptogens and supplements where needed.
- Trusted by patients across Singapore and globally: We work with patients in Singapore, India, and internationally, with online consultations and worldwide kit delivery.
- Integrated with hormone, thyroid, and gut testing: Cortisol rarely behaves badly in isolation. We can combine the Adrenocortex profile with DUTCH hormone, thyroid, and GI-Map testing to give you a complete picture, all coordinated under one practitioner.
What Our Customers Say
Frequently Asked Questions (FAQ)
What's the difference between a cortisol test and an adrenal function test?
A basic test for cortisol might only look at your levels once. An adrenal function test (like our profile) looks at the rhythm of cortisol over 24 hours and often includes DHEA, providing a complete picture of your stress-adaptation system.
Do I need to fast before a cortisol saliva test?
While fasting isn’t always strictly required for saliva testing, you must avoid eating, drinking, or brushing your teeth for 30 minutes before each collection to ensure the sample isn’t contaminated.
Which medications can interfere with cortisol tests?
We never recommend that patients discontinue medically necessary medications or supplements in order to complete testing. Please speak to your health practitioner about it
Does a cortisol test assess "adrenal fatigue"?
“Adrenal fatigue” is a popular term, but it is not a recognized medical assessment. Instead, we use the test to assess HPA Axis Dysregulation, which is the scientifically backed term for the symptoms people associate with adrenal exhaustion.
Is cortisol linked to chronic fatigue or burnout symptoms?
Yes, absolutely. Research consistently shows that people suffering from burnout often have a “flattened” cortisol curve or an abnormal CAR, meaning their body has lost its ability to regulate energy levels effectively.
Does shift work affect cortisol test results?
Yes, shift work affects cortisol test results because cortisol follows your natural sleep-wake cycle. In shift workers, this rhythm is disturbed. To ensure accurate results in shift workers, sample collection times are adjusted based on your actual sleeping and waking hours rather than standard clock times.
Can children take a cortisol test?
Yes, children can take a cortisol test, however its level varies by age, so results should always be interpreted by qualified healthcare professionals.
Do glucocorticoid medications affect the test?
Yes, glucocorticoid medications such as steroids, inhalers, etc., alter natural cortisol levels and affect the results. It’s always important to inform your healthcare provider before testing.
