The documentation you need for HSA/FSA qualified health expenses
Get a Letter of Medical Necessity for Fitness or Nutrition
Your HSA or FSA may be able to help cover certain fitness and nutrition related expenses when they are medically necessary to treat a health condition.
For just $25 a year, our service connects you with a licensed medical provider to obtain a Letter of Medical Necessity for qualifying fitness and nutrition expenses, available across all 50 states.
$25/year. One simple subscription, support for eligible health expenses.
Letter of Medical Necessity for Gym Memberships
If you're managing a condition like obesity, hypertension, type 2 diabetes, or anxiety, regular exercise may be part of your treatment plan. A Letter of Medical Necessity from a licensed Lemonaid provider documents that connection, so your gym or fitness membership can be considered for HSA/FSA reimbursement.
Qualifying patients get a Letter of Medical Necessity with $25 consultation
Letter of Medical Necessity for Nutrition Counseling
If a provider determines that nutrition counseling or a specific dietary program is necessary to manage a condition — such as diabetes, high cholesterol, or disordered eating recovery — a Letter of Medical Necessity can help make that care HSA/FSA-eligible.
Qualifying patients get a Letter of Medical Necessity with $25 consultation

How It Works:
- Choose your needs:
Fitness-gym membership, other fitness-related expenses
Nutrition-nutrition related expenses associated with the treatment of a medical condition - Complete your Medical Consultation
Answer a brief questionnaire detailing your current health conditions and other relevant questions. - Connect with a licensed medical provider.
A licensed medical provider will review your submitted information. - Receive your Letter of Medical Necessity.
If deemed medically appropriate, you’ll receive a letter that explains the medical condition and the medical necessity of the qualifying expense. - Submit your letter along with the appropriate receipts.
Use your Letter of Medical Necessity when submitting to your HSA/FSA administrator to claim their pre-tax reimbursement.
That’s it.
No office visit. No complicated paperwork.
100% virtual
Complete the process from wherever you are
Simple Process:
Assessment→ Clinical Review → Documentation → Submission
Don’t Leave Your Health Benefits Sitting On The Table.
You may already be spending money on the things that help you manage your health.
Lemonaid Health makes the medical documentation process seamless.
Get started for just $25/year
Frequently Asked Questions
What is a Letter of Medical Necessity?
A Letter of Medical Necessity is a document that details why a patient needs a specific product or treatment (like a wheelchair, vitamin supplement or swim therapy) for medical purposes so that the expense can be paid for with funds from an HSA (Health Savings Account) or FSA (Flexible Spending Account).
HSA and FSA accounts allow you to set aside pre-tax money you can use to pay for qualified medical expenses. But sometimes, these health care costs might not be automatically recognized as HSA or FSA-qualified expenses. In such cases, a Letter of Medical Necessity provides documentation explaining why that particular expense is medically necessary so that it meets the criteria for reimbursement under HSA or FSA guidelines.
Does a LMN guarantee that my HSA or FSA will reimburse me?
No. A LMN does not guarantee that an expense will be approved. Eligibility will depend on your plan and your HSA/FSA administrator.
Can I use this for a gym membership?
A gym membership qualifies when it is used for the treatment of a specific diagnosed medical condition.
Can I use this for any fitness or nutrition expense?
No. An LMN can only be used on eligible expenses. These expenses must meet specific requirements and medical necessity needs to be supported by documentation.
Do I need a diagnosed medical condition?
Yes. Medical necessity needs to be tied to a specific medical condition.
How long does the letter last?
The Letter of Medical Necessity is valid for one year. After one year, it will auto-renew at the base rate of $25
What if my HSA/FSA administrator rejects my claim?
We cannot guarantee approval of a claim. If your claim is rejected, contact your plan administrator to understand the reason and find out what additional documentation may be required.
Eligibility for HSA/FSA reimbursement depends on your plan. A Letter of Medical Necessity does not guarantee reimbursement.

