Can You Use FSA or HSA to Buy Electrolytes? (2026 Guide)
Short answer: it depends. Most electrolyte powders and drops aren’t automatically FSA or HSA eligible — but in some cases, they may qualify with proper medical documentation. This 2026 guide explains what counts, when reimbursement is possible, and how to avoid surprises.
If you’re choosing electrolytes for medical reasons, sodium levels matter. You may also want to see which options are electrolytes safe for high blood pressure .
Electrolytes commonly used with a Letter of Medical Necessity (2026)
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Are LMNT electrolytes HSA or FSA eligible in 2026?
LMNT electrolytes are not automatically eligible but may be reimbursable with a Letter of Medical Necessity.
Do I need a Letter of Medical Necessity for electrolytes?
In most cases, yes. A healthcare provider must document medical need.
Will my FSA or HSA card work at checkout?
Some cards may be declined. Many people pay out of pocket and submit receipts with an LMN.
Informational only. Always verify eligibility with your plan administrator.