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Cortisol

Insights Insights

Your cortisol levels are normal. Research shows that cortisol is a hormone that's released in response to stress and regulates blood pressure, blood sugar levels, and the immune system. High cortisol levels can indicate chronic stress, while low levels can be caused by conditions such as Addison's disease. It's recommended that you discuss any concerns about your cortisol levels with your healthcare provider.
Cortisol, Total
good
13.4 mcg/dL

Note: Reference Range: For 8 a.m.(7-9 a.m.) Specimen: 4.0-22.0 Reference Range: For 4 p.m.(3-5 p.m.) Specimen: 3.0-17.0 * Please interpret above results accordingly *

Comprehensive Metabolic Panel

Insights Insights

Most of your values are within the normal range. This is a positive outcome, indicating that your overall metabolism and organ function are functioning well. However, there are a couple of findings that are worth discussing. Your Urea Nitrogen (BUN) and Creatinine levels are high. Although they are only slightly elevated, it's important to monitor them closely. High BUN and Creatinine levels may suggest reduced kidney function or dehydration. I recommend discussing these results with your healthcare provider to determine the underlying cause and develop an appropriate management plan. It's worth noting that your EGFR, which is a measure of kidney function, is within the normal range. This is reassuring and suggests that your kidneys are still able to filter waste products effectively. Overall, it's important to remember that blood test results need to be interpreted in the context of your overall health and medical history. Your healthcare provider will be able to provide a more comprehensive analysis and guide you further based on these results.
Urea Nitrogen (BUN)
high
Low Desirable 7 – 25 High
26 mg/dL
Creatinine
high
Low Desirable 0.60 – 1.26 High
1.34 mg/dL
AST
good
Low Desirable 10 – 40 High
21 U/L
Glucose
good
Low Desirable 65 – 99 High
87 mg/dL

Note: Fasting reference interval

EGFR
good
Low Desirable > 60
71 mL/min/1.73m2
BUN/Creatinine Ratio
good
Low Desirable 6 – 22 High
19 (calc)
Sodium
good
Low Desirable 135 – 146 High
139 mmol/L
Potassium
good
Low Desirable 3.5 – 5.3 High
4.2 mmol/L
Chloride
good
Low Desirable 98 – 110 High
105 mmol/L
Carbon Dioxide
good
Low Desirable 20 – 32 High
25 mmol/L
Calcium
good
Low Desirable 8.6 – 10.3 High
9.9 mg/dL
Protein, Total
good
Low Desirable 6.1 – 8.1 High
7.4 g/dL
Albumin
good
Low Desirable 3.6 – 5.1 High
5.0 g/dL
Globulin
good
Low Desirable 1.9 – 3.7 High
2.4 g/dL (calc)
Albumin/Globulin Ratio
good
Low Desirable 1.0 – 2.5 High
2.1 (calc)
Bilirubin, Total
good
Low Desirable 0.2 – 1.2 High
0.6 mg/dL
Alkaline Phosphatase
good
Low Desirable 36 – 130 High
59 U/L
ALT
good
Low Desirable 9 – 46 High
29 U/L

CBC (Includes DIFF/PLT)

Insights Insights

All of your CBC (INCLUDES DIFF/PLT) results are within the normal range. This means that there are no apparent abnormalities in your blood count and no signs of infection or anemia. Keep up with regular check-ups to ensure your continued good health.
White Blood Cell Count
good
Low Desirable 3.8 – 10.8 High
6.1 Thousand/uL
Red Blood Cell Count
good
Low Desirable 3.80 – 5.10 High
4.41 Million/uL
Hemoglobin
good
Low Desirable 11.7 – 15.5 High
13.0 g/dL
Hematocrit
good
Low Desirable 35.0 – 45.0 High
39.0%
MCV
good
Low Desirable 80.0 – 100.0 High
88.4 fL
MCH
good
Low Desirable 27.0 – 33.0 High
29.5 pg
MCHC
good
Low Desirable 32.0 – 36.0 High
33.3 g/dL
RDW
good
Low Desirable 11.0 – 15.0 High
12.0%
Platelet Count
good
Low Desirable 140 – 400 High
295 Thousand/uL
MPV
good
Low Desirable 7.5 – 12.5 High
9.4 fL
Absolute Neutrophils
good
Low Desirable 1500 – 7800 High
3520 cells/uL
Absolute Lymphocytes
good
Low Desirable 850 – 3900 High
2098 cells/uL
Absolute Monocytes
good
Low Desirable 200 – 950 High
348 cells/uL
Absolute Eosinophils
good
Low Desirable 15 – 500 High
92 cells/uL
Absolute Basophils
good
Desirable < 200 High
43 cells/uL
Neutrophils
good
57.7%
Lymphocytes
good
34.4%
Monocytes
good
5.7%
Eosinophils
good
1.5%
Basophils
good
0.7%

Vitamin B12/Folate

Insights Insights

Your Vitamin B12 and Folate levels are within the normal range. This is positive news as it indicates that your body has adequate levels of these important nutrients. Maintaining normal levels of Vitamin B12 and Folate is crucial for the proper functioning of your body, including the production of red blood cells and the health of your nervous system. Research shows that Vitamin B12 is primarily found in animal-based foods and plays a key role in maintaining the health of your nerves and blood cells. Folate, on the other hand, is found in a variety of foods, including leafy green vegetables, fruits, and legumes. It is essential for DNA synthesis and cell division. It's recommended that you continue to consume a balanced diet containing foods rich in Vitamin B12 and Folate to ensure that your levels remain within the normal range. If you have any concerns or questions about your blood test results, I would advise you to consult with your healthcare provider for further guidance. Keep up the good work in maintaining a healthy lifestyle!
Vitamin B12
good
Low Desirable 200 – 1100 High
616 pg/mL
Folate, Serum
good
10.0 ng/mL

Note: Reference Range Low: <3.4 Borderline: 3.4-5.4 Normal: >5.4

Iron

Insights Insights

Your Iron, Total results are normal, which is a good indicator of your body's ability to produce and maintain healthy red blood cells. Research shows that maintaining adequate levels of iron is important for overall health and well-being. Keep up the good work!
Iron, Total
good
Low Desirable 50 – 180 High
157 mcg/dL

Ferritin

Insights Insights

Your ferritin levels are within the normal range, which is a positive result. Ferritin is a protein that stores iron in your body, and it is used as an indicator of your body's iron stores. Normal ferritin levels are important for healthy bodily functions, including the production of red blood cells. Maintaining normal ferritin levels is crucial to prevent iron deficiency or iron overload. Iron deficiency can lead to anemia, causing symptoms like fatigue, weakness, and difficulty concentrating. On the other hand, iron overload can lead to organ damage and other health problems. Since your ferritin levels are normal, it suggests that your body has an appropriate amount of iron stores. However, it's important to note that a blood test only provides a snapshot of your iron status at a specific point in time. Regular monitoring of your ferritin levels is recommended to ensure they remain within the normal range. If you have any concerns about your iron levels or overall health, it's always best to consult with your healthcare provider. They can evaluate your complete medical history and provide personalized advice based on your specific circumstances.
Ferritin
good
Low Desirable 38 – 380 High
363 ng/mL

Testosterone

Insights Insights

Your testosterone levels are within the normal range. This is a positive finding and indicates that your testosterone levels are appropriate for your age and sex. It's recommended that you continue to maintain a healthy lifestyle to support optimal hormone balance. Regular exercise, a balanced diet, and sufficient sleep are all factors that can contribute to maintaining normal testosterone levels. If you have any concerns or questions about your hormone levels, I would recommend discussing them with your doctor.
Testosterone, Total, MS
good
Low Desirable 250 – 1100 High
641 ng/dL

Note: For additional information, please refer to http://education.questdiagnostics.com/faq/ TotalTestosteroneLCMSMSFAQ165 (This link is being provided for informational/ educational purposes only.) This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics Nichols Institute Chantilly, VA. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Testosterone, Free
good
Low Desirable 35.0 – 155.0 High
84.6 pg/mL

Note: This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics Nichols Institute Chantilly, VA. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Estradiol

Insights Insights

Your blood test results indicate that your estradiol levels are high. Estradiol is a form of estrogen, which plays a crucial role in various bodily functions. While it's normal for estrogen levels to fluctuate, persistently high levels may have implications for your health. Research shows that elevated estradiol levels can be associated with a range of symptoms and conditions. These can include mood swings, breast tenderness, weight gain, and even an increased risk for certain types of cancers. It's recommended that you discuss these results with your healthcare provider, who can provide further guidance and determine the most appropriate course of action. They may suggest additional tests or evaluations to better understand the underlying cause of the elevated estradiol levels. They can also discuss potential treatment options if necessary. Please note that in some cases, high estradiol levels may be a result of hormone replacement therapy (HRT) or testosterone replacement therapy (TRT), which are often used to address hormonal imbalances. If you are currently undergoing either of these therapies, it's important to consult with your healthcare provider to ensure that your treatment plan is appropriately balanced. Remember, your healthcare provider has access to your complete medical history and can provide personalized advice based on your specific situation.
Estradiol
high
Desirable < 39 High
90 pg/mL

Note: Reference range established on post-pubertal patient population. No pre-pubertal reference range established using this assay. For any patients for whom low Estradiol levels are anticipated (e.g. males, pre-pubertal children and hypogonadal/post-menopausal females), the Quest Diagnostics Nichols Institute Estradiol, Ultrasensitive, LCMSMS assay is recommended (order code 30289). Please note: patients being treated with the drug fulvestrant (Faslodex(R)) have demonstrated significant interference in immunoassay methods for estradiol measurement. The cross reactivity could lead to falsely elevated estradiol test results leading to an inappropriate clinical assessment of estrogen status. Quest Diagnostics order code 30289-Estradiol, Ultrasensitive LC/MS/MS demonstrates negligible cross reactivity with fulvestrant.

DHEA Sulfate

Insights Insights

Your DHEA Sulfate levels are within the normal range. DHEA Sulfate is a hormone produced by the adrenal glands, and it plays a role in the production of other hormones, including testosterone. Normal levels indicate that your adrenal glands are functioning properly. Research shows that maintaining normal DHEA Sulfate levels is important for overall hormone balance and general well-being. It's recommended that you continue to monitor your hormone levels regularly to ensure they remain within the normal range. If you have any concerns or questions, it's always best to consult with your healthcare provider for further guidance.
DHEA Sulfate
good
Low Desirable 93 – 415 High
315 mcg/dL

Sex Hormone Binding Globulin

Insights Insights

Your sex hormone binding globulin (SHBG) test results are normal. SHBG is a protein produced by the liver that binds to sex hormones, such as testosterone and estrogen, in the bloodstream. It plays a crucial role in regulating the availability of these hormones in your body. Having a normal SHBG level indicates that your liver is producing an appropriate amount of this protein, and your sex hormone levels are well-balanced. This is an important factor in maintaining optimal reproductive and overall health. It's great to see that your SHBG results are within the normal range. If you have any concerns about your hormone levels or symptoms you may be experiencing, it's always a good idea to discuss them with your healthcare provider. They can provide further guidance and take into account your specific medical history and individual needs.
Sex Hormone Binding Globulin
good
Low Desirable 10 – 50 High
48 nmol/L

Thyroid Panel With TSH

Insights Insights

Your thyroid panel with TSH results are all within normal ranges, which is a good sign of your thyroid function. It's recommended that you continue to monitor your thyroid health through regular check-ups with your healthcare provider. If you experience any symptoms of thyroid issues such as unexplained weight changes, fatigue, or changes in your hair and skin, be sure to discuss them with your doctor.
T4 (Thyroxine), Total
good
Low Desirable 5.1 – 11.9 High
5.2 mcg/dL
Free T4 Index (T7)
good
Low Desirable 1.4 – 3.8 High
1.8
T3 Uptake
good
Low Desirable 22 – 35 High
35%
TSH
good
1.27 mIU/L

Note: Reference Range > or = 20 Years 0.40-4.50 Pregnancy Ranges First trimester 0.26-2.66 Second trimester 0.55-2.73 Third trimester 0.43-2.91

Hemoglobin A1C

Insights Insights

Your Hemoglobin A1c levels are within the normal range, which is great news. This test indicates your average blood sugar levels over the past two to three months. Keeping your blood sugar levels within the normal range can help prevent long-term complications associated with diabetes. It's recommended that you continue to monitor your blood sugar levels and follow a healthy lifestyle to maintain optimal health.
Hemoglobin A1C
good
Desirable < 5.7 High
5.0 % of total Hgb

Note: For the purpose of screening for the presence of diabetes: <5.7% Consistent with the absence of diabetes 5.7-6.4% Consistent with increased risk for diabetes (prediabetes) > or =6.5% Consistent with diabetes This assay result is consistent with a decreased risk of diabetes. Currently, no consensus exists regarding use of hemoglobin A1c for diagnosis of diabetes in children. According to American Diabetes Association (ADA) guidelines, hemoglobin A1c <7.0% represents optimal control in non-pregnant diabetic patients. Different metrics may apply to specific patient populations. Standards of Medical Care in Diabetes(ADA).

Questassured(TM) 25 Hydroxyvitamin D(D2,D3)

Insights Insights

Your levels of Vitamin D, specifically 25-hydroxyvitamin D (D2 and D3), appear to be within the normal range. This is good news, as Vitamin D plays a crucial role in maintaining healthy bones and immune function. Research shows that maintaining appropriate levels of Vitamin D is important for overall health. It's recommended that you continue to engage in activities that promote Vitamin D synthesis, such as spending time in the sunlight or consuming foods rich in this vitamin. However, it's always a good idea to discuss your specific health needs with your healthcare provider. If you have any concerns about your Vitamin D levels or any other aspect of your blood test, I encourage you to reach out to your healthcare provider for further discussion and guidance. They will have a comprehensive understanding of your medical history and can provide personalized recommendations to support your overall well-being.
Vitamin D, 25-OH, Total
good
Low Desirable 30 – 100 High
50 ng/mL

Note: Vitamin D, 25-Hydroxy reports concentrations of two common forms, 25-OHD2 and 25-OHD3. 25-OHD3 indicates both endogenous production and supplementation. 25-OHD2 is an indicator of exogenous sources such as diet or supplementation. Therapy is based on measurement of Total 25-OHD, with levels <20 ng/mL indicative of Vitamin D deficiency, while levels between 20 ng/mL and 30 ng/mL suggest insufficiency. Optimal levels are > or = 30 ng/mL. For additional information, please refer to http://education.QuestDiagnostics.com/faq/FAQ199 (This link is being provided for informational/ educational purposes only.)

Vitamin D, 25-OH, D3
good
50 ng/mL

Note: This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics Nichols Institute Chantilly, VA. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Vitamin D, 25-OH, D2
good
<4 ng/mL

Note: This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics Nichols Institute Chantilly, VA. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Magnesium

Insights Insights

Your magnesium levels are within the normal range. Magnesium is an essential mineral that plays a role in many bodily functions, including muscle and nerve function, blood sugar control, and bone health. Research shows that maintaining normal magnesium levels is important for overall health. Keep up with a balanced diet that includes magnesium-rich foods such as almonds, spinach, and avocado.
Magnesium
good
Low Desirable 1.5 – 2.5 High
2.2 mg/dL

HS CRP

Insights Insights

The HS CRP level is high. This indicates an increased level of C-reactive protein, which is a marker of inflammation in the body. Research shows that elevated HS CRP levels may be associated with an increased risk of cardiovascular disease and other chronic conditions. It's recommended that you discuss these results with your doctor to further evaluate the underlying cause of the inflammation and determine appropriate treatment options.
HS CRP
high
5.6 mg/L

Note: Reference Range Optimal <1.0 Jellinger PS et al. Endocr Pract.2017;23(Suppl 2):1-87. For ages >17 Years: hs-CRP mg/L Risk According to AHA/CDC Guidelines <1.0 Lower relative cardiovascular risk. 1.0-3.0 Average relative cardiovascular risk. 3.1-10.0 Higher relative cardiovascular risk. Consider retesting in 1 to 2 weeks to exclude a benign transient elevation in the baseline CRP value secondary to infection or inflammation. >10.0 Persistent elevation, upon retesting, may be associated with infection and inflammation.

ANA Screen

Insights Insights

The ANA Screen, IFA test came back normal, which is a good sign. It's recommended that you continue to monitor your health and get regular check-ups to ensure everything stays within the healthy range.
ANA Screen, IFA
good
NEGATIVE

Note: ANA IFA is a first line screen for detecting the presence of up to approximately 150 autoantibodies in various autoimmune diseases. A negative ANA IFA result suggests an ANA-associated autoimmune disease is not present at this time, but is not definitive. If there is high clinical suspicion for Sjogren's syndrome, testing for anti-SS-A/Ro antibody should be considered. Anti-Jo-1 antibody should be considered for clinically suspected inflammatory myopathies. AC-0: Negative International Consensus on ANA Patterns (https://doi.org/10.1515/cclm-2018-0052) For additional information, please refer to http://education.QuestDiagnostics.com/faq/FAQ177 (This link is being provided for informational/ educational purposes only.)

Rheumatoid Factor

Insights Insights

Your Rheumatoid Factor is within the normal range. This is a good result and indicates that you do not have evidence of rheumatoid arthritis. Keep in mind that it's important to continue to monitor your health and get regular check-ups, as some health conditions may not show symptoms in their early stages.
Rheumatoid Factor
good
Desirable < 14 High
<10
IU/mL

DNA (DS) Antibody

Insights Insights

Your DNA (DS) Antibody levels are within the normal range. This is a positive finding, as it indicates that no antibodies against DNA (DS) were detected in your blood. It's important to note that these results are specific to your age and sex group, and it's reassuring to see that your levels are within the normal range. Keep up the good work in maintaining a healthy immune system.
DNA (DS) Antibody
good
1 IU/mL

Note: IU/mL Interpretation < or = 4 Negative 5-9 Indeterminate > or = 10 Positive

Complement Component C3C

Insights Insights

Your Complement Component C3c level is within the normal range. This is a positive result, indicating that your immune system is functioning properly. It's recommended that you continue to maintain a healthy lifestyle to support your overall well-being. If you have any concerns or questions, please don't hesitate to consult with your healthcare provider.
Complement Component C3C
good
Low Desirable 82 – 185 High
138 mg/dL

Gliadin (Deamidated) AB (IGG

Insights Insights

Your Gliadin (deamidated) AB (IGG) level is within the normal range. However, your Gliadin (deamidated) AB (IGA) level is high. Research shows that elevated levels of Gliadin (deamidated) AB (IGA) may indicate an immune response to gluten. It's recommended that you consult with a healthcare professional who specializes in gastrointestinal health, such as a gastroenterologist, to further evaluate this result. They can provide you with a comprehensive assessment and guide you on any necessary dietary modifications or additional testing that may be required.
Gliadin (Deamidated) AB (IGA)
high
16.4 U/mL

Note: Units Value Interpretation ----------- -------------- <15.0 Antibody not detected > or = 15.0 Antibody detected

Gliadin (Deamidated) AB (IGG)
good
1.2 U/mL

Note: Units Value Interpretation ----------- -------------- <15.0 Antibody not detected > or = 15.0 Antibody detected

Sample image
Sample report
Comprehensive brain fog panel checking vitamin deficiencies, thyroid, and hormone imbalances affecting mental clarity

Blood Test for Brain Fog and Poor Focus

Brain Fog Panel

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3,138 reviews
  • Pinpoint the cause of your brain fog
  • Reveal hidden nutritional deficiencies affecting focus
  • Clarify if hormone imbalances are to blame
$631 Example results
First results as soon as overnight*

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

What's this test for?

This test is ideal if you're experiencing persistent brain fog, difficulty concentrating, memory problems, or mental fatigue that interferes with your daily life. It helps identify underlying causes like nutritional deficiencies (B12, folate, iron, vitamin D), thyroid dysfunction, hormonal imbalances, or inflammation that may be affecting your cognitive function. Many people use this test when they feel mentally sluggish but can't pinpoint why, seeking concrete answers about what's impacting their mental clarity and focus.

How should I prepare for this test?

Fasting: 12 hours
No biotin: 72 hours

You should fast for 12 hours before your blood draw, consuming only water during this time. Schedule your test in the morning, as iron and other biomarker levels can change throughout the day. If you take high-dose biotin supplements (over 5 mg/day), stop taking them at least 72 hours before testing to avoid interference. Avoid applying testosterone cream to the inside of your arm for 24 hours before the test, and if you're on prednisone or prednisolone therapy, consult with your doctor as it may affect cortisol results.

What's included in this test?

Ana Screen, Ifa Hs CRP Dna (Ds) Antibody Sex Hormone Binding Globulin Complement Component C3C Cortisol, Total Dhea Sulfate Estradiol Rheumatoid Factor Ferritin Hemoglobin A1C Iron, Total Magnesium

This comprehensive panel evaluates nutritional deficiencies that commonly cause brain fog, including Vitamin B12, folate, iron, ferritin, magnesium, and Vitamin D, all critical for cognitive function and energy production. It checks thyroid function (TSH, T3, T4) to identify metabolism issues affecting mental clarity, measures hormones like cortisol, DHEA, testosterone, and estradiol that impact mood and focus, and assesses inflammatory markers (CRP, ANA, rheumatoid factor) and metabolic health through complete blood count and comprehensive metabolic panels. Together, these measurements provide a complete picture of the nutritional, hormonal, and inflammatory factors that may be clouding your thinking.

What happens after I get my results?
You'll receive detailed doctor notes in simple language explaining what your nutrient levels, hormones, and inflammatory markers mean for your brain function and mental clarity. These notes include personalized recommendations like dietary changes, specific supplements to address deficiencies, lifestyle adjustments for better focus, or whether you should follow up with a specialist. You'll also get the standard lab report and can track your biomarker levels over time using our trends feature to see how your interventions improve your cognitive performance.
When will I get my results?
You can expect to receive your results within 7 business days after your sample is collected. If any confirmatory testing is required for specific biomarkers, the turnaround time may be extended slightly. You'll be notified as soon as your comprehensive results are ready to view online.
Who should consider getting this test?
This test is perfect for anyone experiencing ongoing mental cloudiness, forgetfulness, difficulty concentrating at work or school, or feeling like your thinking is slower than usual. It's especially valuable for people with unexplained fatigue alongside cognitive issues, those with dietary restrictions that may cause deficiencies, individuals under chronic stress, or anyone whose brain fog hasn't improved with basic lifestyle changes. If you're struggling to stay focused and productive despite getting adequate sleep, this test can help identify the root cause.
What symptoms indicate I may need this test?
Common symptoms include difficulty finding words or completing thoughts, trouble remembering names or recent events, feeling mentally exhausted even after rest, struggling to focus on tasks or conversations, and a general sense of mental fuzziness or confusion. You might also experience related symptoms like fatigue, mood changes, sensitivity to cold, unexplained weight changes, or low motivation. If these symptoms are interfering with your work, relationships, or daily activities, this test can help identify treatable causes.
How can I naturally support better focus and mental clarity?
Start by prioritizing 7-9 hours of quality sleep each night and staying well-hydrated throughout the day, as dehydration significantly impacts cognitive function. Include brain-healthy foods rich in omega-3 fatty acids (fatty fish, walnuts), B vitamins (eggs, leafy greens, legumes), iron (red meat, spinach, lentils), and magnesium (nuts, seeds, whole grains). Regular exercise improves blood flow to the brain, while stress management through meditation or deep breathing reduces cortisol levels that can impair memory and focus. Limiting processed foods, sugar, and alcohol also helps maintain steady blood sugar and mental clarity.
What does low Vitamin B12 mean?
Low Vitamin B12 can significantly impact brain function, causing brain fog, memory problems, difficulty concentrating, and mental fatigue. B12 is essential for producing myelin, the protective coating around nerves that allows proper signal transmission in the brain. Low levels are common in vegetarians, vegans, people over 50, and those with digestive issues that impair absorption. Supplementation and dietary changes can usually restore levels and improve cognitive symptoms within weeks to months.
How often should I retest for brain fog issues?
If you're addressing nutritional deficiencies or starting new supplements, retesting in 8-12 weeks helps confirm your levels are improving and your interventions are working. For thyroid or hormone imbalances requiring treatment, your doctor may recommend retesting every 6-8 weeks initially until levels stabilize. Once your brain fog improves and biomarkers normalize, annual testing helps ensure you maintain optimal levels. If symptoms return or worsen, retest sooner to catch any changes early.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
  4. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
  5. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
    8. If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at [email protected], and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at [email protected]. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email [email protected].
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email [email protected].

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
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Demo results
Vitamin B12 285 pg/mL
Demo results
Low Optimal 400 - 900 High
285 pg/mL

What this means

Your Vitamin B12 levels are below the optimal range, which can contribute to brain fog, poor concentration, memory issues, and mental fatigue. B12 is essential for healthy nerve function and producing the protective coating around nerves that allows your brain to communicate efficiently. Low levels are particularly common in people who follow plant-based diets, those over 50, or individuals with digestive issues.

Recommended actions

Include more B12-rich foods like eggs, fish, meat, and fortified cereals in your diet

Consider a B12 supplement (methylcobalamin form is often better absorbed)

If vegetarian or vegan, B12 supplementation is especially important

Retest in 8-12 weeks to confirm levels are improving with dietary changes or supplementation

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their complexity.
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Blood Test for Brain Fog and Poor Focus

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