General
Methylmalonic Acid (MMA)
Lab test

Methylmalonic Acid (MMA)

Assess your vitamin B12 status at the cellular level

Helps detect vitamin B12 deficiency earlier than a standard B12 test alone

Instantly book at 2,000+ labs nationwide

Clear guidance and follow-up care available

Most insurance accepted

Board-certified

No hidden fees

Available nationwide

Complete insights in as little as 48 hours

1

Book your test

Instantly schedule at 2,000+ labs nationwide, at a time that works for you. Most visits take 15 minutes or less, with both walk-ins and appointments available.

2

Get results in 48 hours

Your results are delivered quickly—and reviewed by medical professionals. You’ll get clear explanations, robust health insights, and recommended next steps tailored to your health needs.

3

Take action with physician guidance

Choose to review your results and manage your plan with a General Medicine physician—or simply use the insights on your own.

4

Track progress over time

Repeat annually to see trends, improvements, and new emerging risks or book individual tests that focus on your set goals

All your care in one place. That’s the General Medicine difference.

We help you understand your options, connect you to the right clinicians, manage prescriptions, coordinate any needed evaluations, and keep an eye on your overall health along the way. It’s comprehensive care that looks at the full picture — your goals, your history, your lifestyle — and makes it simple to move forward with confidence.

Your care plan
Clinician

What's included

Test type

Blood sample

Collection method

Venipuncture

Fasting

Not required

Results processing time

3 to 6 days

Methylmalonic Acid

Measures the amount of methylmalonic acid in your blood. Elevated MMA levels may indicate a functional vitamin B12 deficiency, even when standard B12 levels appear normal.

Virtual visit with clinician

Ongoing support, always available.

You’ll be supported by experienced clinicians who care for a wide range of health needs, from everyday concerns to more complex conditions.

Our clinicians track your progress over time and adjust your care as needed. If medication is prescribed, we’ll manage dosing and monitor for side effects. If lab testing is recommended, we review results and refine your plan accordingly. You’re never left to navigate care on your own.

What our customers have to say

Hear from people who felt heard, understood, and supported on General Medicine.

“I found the ease of setting the appointment and how quickly I was able to be seen to be amazing. The physician was very friendly and amazingly helpful.”

Natalie, Texas

“The chat visit was super convenient. The doctor was friendly and took the time needed to answer any questions I had. The prescription I needed was called in and ready the same afternoon.”

Dustin, Tennessee

“I loved my General Medicine experience. It gave me peace of mind to know someone cared and I felt they listened to what I was saying.”

Ann, Florida

“General Medicine is easily the most approachable, efficient, high-quality, and responsive care team I've had the pleasure of working with.”

John, Utah

“General Medicine helped me get the imaging and blood work I needed, referred me to the right specialists, and even helped me find a new family doctor.”

Bridget, Mississippi

Order your lab today.

Frequently asked questions

Who is eligible to use this service?

Our lab testing services are designed for adults aged 18 and older. For those under 18, we recommend consulting a pediatric healthcare provider. If you're assisting someone, they'll need to sign up on their own.

Where do I go for testing?

We make it easy to book at certified labs near you, including Quest Diagnostics, Labcorp and Bio-Reference. Availability varies by location. Simply choose your preferred location, and you'll receive a booking confirmation with all the details. If you'd prefer another lab, we can help send your lab orders there instead.

Is insurance accepted?

Insurance is accepted for some lab services. See the pricing section on each lab page for details. You can compare prices and select your billing method when booking. We also accept most major insurance plans for follow-up visits with our care team, and we'll always provide clear, upfront pricing before you book.

Can I consult with a clinician about my results?

Yes! Clinicians are available via text for basic questions about your results. If you need further care, treatment, or additional testing, you'll be able to book a virtual visit for personalized support.

How do you protect my health information?

We take your privacy seriously and secure your data with the highest standards. Your personal health information is never shared or sold for advertising or marketing purposes—ensuring your data stays private and protected. For more details, you can review our Terms of Service, Privacy Policy, and HIPAA Notice of Privacy Practices.
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