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TSH thyroid test for people experiencing fatigue, weight changes, and low energy

Thyroid Test for Weight Gain and Low Energy

Thyroid-Stimulating Hormone (TSH)

Google
3,138 reviews
  • Diagnose thyroid problems with precision
  • Pinpoint the cause of chronic fatigue
  • Expose the reasons behind your weight gain
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 unexplained fatigue, unexpected weight gain or difficulty losing weight, feeling unusually cold or hot, mood changes, or brain fog. It helps identify thyroid disorders like hypothyroidism or hyperthyroidism that could be behind these symptoms. Many people use this test when they suspect their thyroid might be affecting their energy levels, metabolism, and overall well-being but want concrete answers.

How should I prepare for this test?

No special preparation is needed for this test. You don't need to fast before your blood draw, so you can eat and drink normally. You can take your regular medications unless your doctor has advised otherwise. Simply visit the lab at your convenience to have your blood drawn.

What's included in this test?

TSH

This test measures your TSH (Thyroid Stimulating Hormone) level, which is the primary indicator of how well your thyroid is functioning. TSH controls how much thyroid hormone your body produces, directly affecting your metabolism, energy levels, body temperature, and weight. An abnormal TSH level can explain many symptoms like chronic fatigue, unexplained weight changes, mood swings, and difficulty concentrating.

What happens after I get my results?
You'll get easy-to-understand doctor notes that explain your thyroid function and how it relates to symptoms like fatigue or weight changes. The notes provide actionable guidance on diet, supplements, or when to follow up with an endocrinologist. Along with your standard lab report, you can use our trends feature to monitor your thyroid levels over time, especially helpful if you're on medication or making lifestyle adjustments.
When will I get my results?
Most TSH test results are available within 1-2 business days after your blood sample is collected at the lab. You'll receive an email notification as soon as your results are ready to view in your secure online account. If you need results urgently, check with the lab about their specific turnaround times.
Who should consider getting this test?
This test is ideal for anyone experiencing unexplained fatigue, weight changes, mood swings, or temperature sensitivity. It's also important for people with a family history of thyroid disease, women who are pregnant or trying to conceive, and anyone already being treated for thyroid conditions who need regular monitoring. If you've noticed hair loss, dry skin, or changes in your heart rate, this test can provide valuable insights.
What symptoms indicate I may need this test?
Common symptoms that suggest thyroid issues include persistent fatigue even after adequate sleep, unexplained weight gain or difficulty losing weight despite diet and exercise, feeling unusually cold or having cold hands and feet, depression or mood changes, brain fog or difficulty concentrating, dry skin and hair loss, and constipation. If you're experiencing several of these symptoms together, a TSH test can help identify if your thyroid is the underlying cause.
How can I naturally support my thyroid function?
Supporting thyroid health starts with ensuring adequate iodine and selenium intake through foods like fish, eggs, nuts, and dairy. Getting enough quality sleep, managing stress through yoga or meditation, and exercising regularly can help balance thyroid hormones. Avoiding excessive processed foods, limiting alcohol, and maintaining a healthy weight can also support optimal thyroid function.
What does high TSH mean?
High TSH typically indicates hypothyroidism, meaning your thyroid gland isn't producing enough thyroid hormone, so your body releases more TSH to try to stimulate it. This can cause symptoms like fatigue, weight gain, feeling cold, depression, constipation, and dry skin. Many people with high TSH benefit from thyroid hormone replacement therapy, dietary changes, and stress management.
What does low TSH mean?
Low TSH usually indicates hyperthyroidism, meaning your thyroid is producing too much thyroid hormone, so your body doesn't need to produce as much TSH. This can cause symptoms like unexplained weight loss, rapid heartbeat, anxiety, trouble sleeping, feeling hot, and increased sweating. If your TSH is low, your doctor may recommend additional tests and treatment options to help regulate your thyroid function.
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.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Instant orders, results often overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
No insurance needed, transparent pricing
Demo results
TSH (Thyroid Stimulating Hormone) 4.8 mIU/L
Demo results
Low Optimal 0.5 - 4.5 High
4.8 mIU/L

What this means

Your TSH is slightly elevated, which may indicate your thyroid is working harder than ideal to produce enough thyroid hormone. This can contribute to symptoms like fatigue, weight gain, feeling cold, or difficulty concentrating, and may benefit from closer monitoring.

* 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.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
Choose a checkup
Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

Thyroid Test for Weight Gain and Low Energy

Google
3,138 reviews
  • Diagnose thyroid problems with precision
  • Pinpoint the cause of chronic fatigue
  • Expose the reasons behind your weight gain

1,000,000+ blood tests later, here's what our customers say

Google reviews 3138 reviews Next
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.