<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-02-27</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001477449</issuerCik>
        <issuerName>Teladoc Health, Inc.</issuerName>
        <issuerTradingSymbol>TDOC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001375088</rptOwnerCik>
            <rptOwnerName>Vandervoort Adam C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TELADOC HEALTH, INC.,</rptOwnerStreet1>
            <rptOwnerStreet2>155 E 44TH ST, SUITE 1700</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CHIEF LEGAL OFFICER, SECRETARY</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
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                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-02-27</value>
            </transactionDate>
            <transactionCoding>
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                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4418</value>
                </transactionShares>
                <transactionPricePerShare>
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                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
            </transactionAmounts>
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                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
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                    <value>D</value>
                </directOrIndirectOwnership>
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                <transactionPricePerShare>
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            <ownershipNature>
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        <nonDerivativeTransaction>
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                <transactionCode>S</transactionCode>
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            <postTransactionAmounts>
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        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
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            <conversionOrExercisePrice>
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            <transactionDate>
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                </transactionShares>
                <transactionPricePerShare>
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            </exerciseDate>
            <expirationDate>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4418</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
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                </sharesOwnedFollowingTransaction>
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        </derivativeTransaction>
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            <conversionOrExercisePrice>
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            <transactionDate>
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                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
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                </transactionShares>
                <transactionPricePerShare>
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                </transactionPricePerShare>
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                </underlyingSecurityTitle>
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                </underlyingSecurityShares>
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            <postTransactionAmounts>
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                <transactionPricePerShare>
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                </underlyingSecurityTitle>
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                </underlyingSecurityShares>
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                <equitySwapInvolved>0</equitySwapInvolved>
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                <underlyingSecurityShares>
                    <value>5107</value>
                </underlyingSecurityShares>
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                </sharesOwnedFollowingTransaction>
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                    <value>D</value>
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                <value>Performance Stock Units</value>
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                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>1702</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F11"/>
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            <expirationDate>
                <footnoteId id="F11"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1702</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3405</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F12"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-03-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>181661</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F13"/>
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            <expirationDate>
                <footnoteId id="F13"/>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>181661</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>181661</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Restricted stock units convert to shares of TDOC common stock on a one-for-one basis.</footnote>
        <footnote id="F2">Performance stock units convert to shares of TDOC common stock on a one-for-one basis.</footnote>
        <footnote id="F3">Shares sold to cover the tax withholding obligation in respect of vesting of the reporting person's performance stock unit and restricted stock unit awards.</footnote>
        <footnote id="F4">On March 3, 2023, the reporting person was granted 53,013 restricted stock units, vesting one-third on March 1, 2024, with the remainder vesting in eight substantially equal quarterly installments thereafter.</footnote>
        <footnote id="F5">On March 19, 2024, the reporting person was granted 64,200 restricted stock units, vesting one-third on March 19, 2025, with the remainder vesting in eight substantially equal quarterly installments beginning on June 1, 2025.</footnote>
        <footnote id="F6">On March 1, 2025, the reporting person was granted 109,832 restricted stock units, vesting one-third on March 1, 2026, with the remainder vesting in eight substantially equal quarterly installments thereafter.</footnote>
        <footnote id="F7">On March 1, 2024, the reporting person earned 18,067 performance stock units, vesting one-third on March 1, 2024, with the remainder vesting in eight substantially equal quarterly installments thereafter.</footnote>
        <footnote id="F8">Each performance stock unit represents a contingent right to receive one share of TDOC common stock.</footnote>
        <footnote id="F9">Performance award amount determined based on metrics in respect of the issuer's 2025 financial results.</footnote>
        <footnote id="F10">The performance stock units vest as to one-third on March 1, 2026, with the remainder vesting in eight substantially equal quarterly installments thereafter.</footnote>
        <footnote id="F11">On March 1, 2026, the reporting person earned 5,107 performance stock units, vesting one-third on March 1, 2026, with the remainder vesting in eight substantially equal quarterly installments thereafter.</footnote>
        <footnote id="F12">Each restricted stock unit represents a contingent right to receive one share of TDOC common stock.</footnote>
        <footnote id="F13">One-third of the restricted stock units vest on the first anniversary of the grant date, with the remainder vesting in eight substantially equal quarterly installments thereafter.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Adam C. Vandervoort</signatureName>
        <signatureDate>2026-03-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
