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Supplement to the
Fidelity Advisor Inflation-Protected Bond Fund
Class A, Class T, Class B, and Class C
June 29, 2004
Prospectus

<R>Effective June 1, 2005, the management fee has been reduced by 0.10% and FMR has agreed to limit fund-level expenses (which do not include 12b-1 and transfer agency fees). Had these arrangements been in effect during the fund's last fiscal year, net annual fund operating expenses would have been 0.70% for Class A, 0.81% for Class T, 1.47% for Class B, and 1.55% for Class C. In addition, effective October 2, 2002, FMR has made voluntary arrangements, which may be discontinued at any time, to reimburse Class A, Class T, Class B, and Class C of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, and extraordinary expenses), as a percentage of their respective average net assets, exceed 0.65%, 0.75%, 1.40%, and 1.55%, respectively.</R>

Effective April 4, 2005 changes have been made to certain of the fund's Class A and Class T front-end sales charge waivers. The changes simplify the front-end sales charge waivers and make the waivers more consistent across Class A and Class T. The changes also expand access to Class A without sales charges. A complete list of the front-end sales charge waivers for Class A and Class T is included in this supplement.

The following information replaces the similar information for Class A and Class T found in the "Fund Distribution" section on page 30.

A front-end sales charge will not apply to the following Class A shares:

1. Purchased for an employee benefit plan. For this purpose, employee benefit plans generally include profit sharing, 401(k) and 403(b) plans, but do not include: IRAs; SIMPLE, SEP, or SARSEP plans; plans covering self-employed individuals and their employees or plans investing through the Fidelity Advisor 403(b) program;

2. Purchased for an insurance company separate account used to fund annuity contracts for employee benefit plans (as defined above);

3. Purchased by a broker-dealer, registered investment adviser, insurance company, trust institution or bank trust department managed account programs that charge an asset-based fee;

4. Purchased with proceeds from the sale of front-end load shares of a non-Advisor mutual fund for an account participating in the FundSelect by Nationwide program;

5. Purchased by a bank trust officer, registered representative, or other employee (or a member of one of their immediate families) of intermediaries having agreements with FDC. A member of the immediate family of a bank trust officer, a registered representative, or other employee of intermediaries having agreements with FDC, is a spouse of one of those individuals, an account for which one of those individuals is acting as custodian for a minor child, and a trust account that is registered for the sole benefit of a minor child of one of those individuals;

6. Purchased by the Fidelity Investments Charitable Gift Fund; or

7. Purchased to repay a loan against Class A or Class B shares held in the investor's Fidelity Advisor 403(b).

A sales load waiver form must accompany these transactions.

A front-end sales charge will not apply to the following Class T shares:

2. Purchased for an insurance company separate account used to fund annuity contracts for employee benefit plans (as defined above);

3. Purchased by a broker-dealer, registered investment adviser, insurance company, trust institution or bank trust department managed account programs that charge an asset-based fee;

4. Purchased for a Fidelity or Fidelity Advisor account (including purchases by exchange) with the proceeds of a distribution from (i) an insurance company separate account used to fund annuity contracts for employee benefit plans, 403(b) programs, or plans covering sole-proprietors that are invested in Fidelity Advisor or Fidelity funds, or (ii) an employee benefit plan, a 403(b) program other than a Fidelity Advisor 403(b) program, or plan covering a sole-proprietor that is invested in Fidelity Advisor or Fidelity funds. (Distributions other than those transferred to an IRA account must be transferred directly into a Fidelity account.);

5. Purchased for any state, county, or city, or any governmental instrumentality, department, authority or agency;

6. Purchased by a current or former Trustee or officer of a Fidelity fund or a current or retired officer, director or regular employee of FMR Corp. or Fidelity International Limited (FIL) or their direct or indirect subsidiaries (a Fidelity Trustee or employee), the spouse of a Fidelity Trustee or employee, a Fidelity Trustee or employee acting as custodian for a minor child, or a person acting as trustee of a trust for the sole benefit of the minor child of a Fidelity Trustee or employee;

7. Purchased by a charitable organization (as defined for purposes of Section 501(c)(3) of the Internal Revenue Code) investing $100,000 or more;

8. Purchased by the Fidelity Investments Charitable Gift Fund;

9. Purchased by a bank trust officer, registered representative, or other employee (or a member of one of their immediate families) of intermediaries having agreements with FDC. A member of the immediate family of a bank trust officer, a registered representative, or other employee of intermediaries having agreements with FDC, is a spouse of one of those individuals, an account for which one of those individuals is acting as custodian for a minor child, and a trust account that is registered for the sole benefit of a minor child of one of those individuals;

10. Purchased for a charitable remainder trust or life income pool established for the benefit of a charitable organization (as defined for purposes of Section 501(c)(3) of the Internal Revenue Code);

11. Purchased with distributions of income, principal, and capital gains from Fidelity Defined Trusts; or

12. Purchased to repay a loan against Class T shares held in the investor's Fidelity Advisor 403(b).

A sales load waiver form must accompany these transactions.

The following information replaces the similar information found in the "Valuing Shares" section on page 10.

The fund's assets are valued primarily on the basis of information furnished by a pricing service or market quotations. Certain short-term securities are valued on the basis of amortized cost. If market quotations or information furnished by a pricing service is not readily available or does not accurately reflect fair value for a security or if a security's value has been materially affected by events occurring after the close of the exchange or market on which the security is principally traded, that security will be valued by another method that the Board of Trustees believes accurately reflects fair value in accordance with the Board's fair value pricing policies. For example, arbitrage opportunities may exist when trading in a portfolio security or securities is halted and does not resume before the fund calculates its NAV. These arbitrage opportunities may enable short-term traders to dilute the NAV of long-term investors. Securities trading in overseas markets present time zone arbitrage opportunities when events affecting portfolio security values occur after the close of the overseas market but prior to the close of the U.S. market. Fair value pricing may be used for high yield debt and floating rate loans when available pricing information is stale or is determined for other reasons not to accurately reflect fair value. To the extent the fund invests in other open-end funds, the fund will calculate its NAV using the NAV of the underlying funds in which it invests. The fund may invest in other Fidelity funds that use the same fair value pricing policies as the fund or in Fidelity money market funds. A security's valuation may differ depending on the method used for determining value. Fair valuation of a fund's portfolio securities can serve to reduce arbitrage opportunities available to short-term traders, but there is no assurance that fair value pricing policies will prevent dilution of the fund's NAV by short-term traders. While the fund has policies regarding excessive trading, these too may not be effective to prevent short-term NAV arbitrage trading, particularly in regard to omnibus accounts.

The following information supplements the information found in the "Buying and Selling Shares" section beginning on page 11.

Frequent purchases and sales of fund shares can harm shareholders in various ways, including reducing the returns to long-term shareholders by increasing costs to the fund (such as brokerage commissions), disrupting portfolio management strategies, and diluting the value of the shares of long-term shareholders in cases in which fluctuations in markets are not fully priced into the fund's NAV. Accordingly, the Board of Trustees has adopted policies and procedures designed to discourage excessive or short-term trading of fund shares. However, there is the risk that the fund's policies and procedures will prove ineffective in whole or in part to detect or prevent frequent trading. The fund may alter its policies at any time without prior notice to shareholders.

There is no minimum holding period and shareholders can sell their shares at any time. Shareholders will ordinarily comply with the fund's policies regarding excessive trading by allowing 90 days to pass after each investment before they sell or exchange from the fund. The fund may take action if shares are held longer than 90 days if the trading is disruptive for other reasons such as unusually large trade size. The fund reserves the right, but does not have the obligation, to reject any purchase or exchange transaction at any time. In addition, FMR reserves the right to impose restrictions on purchases or exchanges at any time on conditions that are more restrictive on disruptive, excessive, or short-term trading than those that are otherwise stated in this prospectus.

Excessive trading activity is measured by the number of roundtrip transactions in a shareholder's account. A roundtrip transaction occurs when a shareholder buys and then sells shares of a fund within 30 days. Shareholders are limited to two roundtrip transactions per fund within any rolling 90-day period, subject to an overall limit of four roundtrip transactions across all Fidelity funds over a rolling 12-month period. Roundtrip transactions are counted at the shareholder account level for this purpose and each class of a multiple class fund is treated separately. Transactions of $1,000 or less, systematic withdrawal and/or contribution programs, mandatory retirement distributions, and transactions initiated by a plan sponsor will not count toward the roundtrip limits. For employer-sponsored retirement plans, only participant directed exchanges will count toward the roundtrip limits.

Shareholders with two or more roundtrip transactions in a single fund within a rolling 90-day period will be blocked from making additional purchases or exchange purchases of the fund for 85 days. Shareholders with four or more roundtrip transactions across all Fidelity funds within any rolling 12-month period will be blocked for 85 days from additional purchases or exchange purchases across all Fidelity funds. Any roundtrip within 12 months of the expiration of a multi-fund block will initiate another multi-fund block for an 85-day period. For repeat offenders, FMR may, but does not have the obligation to, impose long-term or permanent blocks on purchase or exchange purchase transactions in any account under the shareholder's common control at any time, other than a participant's account held through an employer-sponsored retirement plan. Employer-sponsored retirement plan participants whose activity triggers a purchase or exchange block will be permitted a minimum of one trade every calendar quarter. In the event of a block, employer and participant contributions and loan repayments by the participant may still be invested in the fund. FMR reserves the right, but does not have the obligation to, impose restrictions on purchases or exchanges at any time on conditions that are more restrictive on disruptive, excessive, or short-term trading than those that are otherwise stated in this prospectus.

Qualified wrap programs will be monitored by matching the adviser's orders for purchase, exchange, or sale transactions in fund shares to determine if the adviser's orders comply with the fund's frequent trading policies. Excessive trading by an adviser will lead to fund blocks and the wrap program will cease to be a qualified wrap program. Additions to and withdrawals from a qualified wrap program by the adviser's client will not be matched with transactions initiated by the adviser, but client initiated transactions are subject to the fund's policies on frequent trading and individual clients may be subject to restrictions due to their frequent trading in a wrap account. Commencing no later than March 31, 2005, wrap account client purchases and sale transactions will be monitored under the fund's monitoring policy as though the wrap clients were fund shareholders. A qualified wrap program is: i) a program whose adviser certifies that it has investment discretion over $100 million or more in client assets invested in mutual funds at the time of the certification, ii) a program in which the adviser directs transactions in the accounts participating in the program in concert with changes in a model portfolio, and iii) managed by an adviser who agrees to give FMR sufficient information to permit FMR to identify the individual accounts in the wrap program.

The fund's excessive trade monitoring policy described above does not apply to transactions initiated by the trustee or adviser to a donor-advised charitable gift fund, qualified fund-of-funds or other strategy funds, or omnibus accounts. Trustees or advisers of donor-advised charitable gift funds must certify that they either work from an asset allocation model or direct transactions in the donor accounts in concert with changes in a model portfolio and that donors are limited in their ability to influence investments by the trust. A qualified fund-of-fund is a mutual fund or other strategy fund consisting of qualified plan assets that either applies the fund's policies on frequent trading to shareholders at the top-fund level, or demonstrates that it has policies designed to control frequent trading and that they are reasonably likely to be effective as determined by the fund's Treasurer. The adviser to the top-fund level must also demonstrate to the fund's Treasurer that its investment strategy will not lead to excessive trading. Strategy funds must commence monitoring for excessive trading no later than March 31, 2005. Omnibus accounts are maintained by intermediaries acting on behalf of multiple investors whose individual trades are not ordinarily disclosed to the fund. Short-term trading by these investors is likely to go undetected by the fund and may increase costs and disrupt portfolio management. The fund will monitor aggregate trading in qualified fund-of-funds and known omnibus accounts to attempt to identify disruptive trades, focusing on transactions in excess of $250,000. There is no assurance that these policies will be effective, or will successfully detect or deter market timing.

The fund's Treasurer is authorized to suspend the fund's policies during periods of severe market turbulence or national emergency and to grant exemptions from the policy. There is no assurance that the fund's Treasurer will exercise this authority or that by exercising this authority the fund will be protected from the risks associated with frequent trading. The actions of the Treasurer are periodically reviewed with the Board of Trustees.

The following information replaces the similar information found in the "Buying Shares" section on page 12.

The fund may reject for any reason, or cancel as permitted or required by law, any purchase orders, including exchanges.

For example, the fund may reject any purchase orders, including exchanges, from market timers or investors that, in FMR's opinion, may be disruptive to the fund.

The information regarding the four exchange limit found in the "Exchanging Shares" section beginning on page 17 is no longer applicable.

The following information replaces similar information found in the "Fund Management" section on page 27.

William Irving is manager of the fund, which he has managed since November 2004. He also manages other Fidelity funds. Since joining Fidelity Investments in 1999, Dr. Irving has worked as a quantitative analyst and manager.

The following information replaces similar information in the "Fund Distribution" section beginning on page 28.

Combined Purchase. To receive a Class A or Class T front-end sales charge reduction, if you are a new shareholder, you may combine your purchase of Class A or Class T shares with purchases of: (i) Class A, Class T, Class B, and Class C shares of any Fidelity fund that offers Advisor classes of shares, (ii) Advisor B Class shares and Advisor C Class shares of Treasury Fund, and (iii) Class A Units (New and Old), Class B Units (New and Old), Class C Units, Class D Units, and Class P Units of the Fidelity Advisor 529 Plan.

Rights of Accumulation. To receive a Class A or Class T front-end sales charge reduction, if you are an existing shareholder, you may add to your purchase of Class A or Class T shares the current value of your holdings in: (i) Class A, Class T, Class B, and Class C shares of any Fidelity fund that offers Advisor classes of shares, (ii) Advisor B Class shares and Advisor C Class shares of Treasury Fund, (iii) Daily Money Class shares of Treasury Fund, Prime Fund, or Tax-Exempt Fund acquired by exchange from any Fidelity fund that offers Advisor classes of shares, (iv) Class N and Class O shares of Destiny Portfolios I and II, and (v) Class A Units (New and Old), Class B Units (New and Old), Class C Units, Class D Units, and Class P Units of the Fidelity Advisor 529 Plan.

Letter of Intent. You may receive a Class A or Class T front-end sales charge reduction on your purchases of Class A and Class T shares made during a 13-month period by signing a Letter of Intent (Letter). Each Class A or Class T purchase you make after you sign the Letter will be entitled to the reduced front-end sales charge applicable to the total investment indicated in the Letter. Purchases of the following may be aggregated for the purpose of completing your Letter: (i) Class A and Class T shares of any Fidelity fund that offers Advisor classes of shares (except those acquired by exchange from Daily Money Class shares of Treasury Fund, Prime Fund, or Tax-Exempt Fund that had been previously exchanged from a Fidelity fund that offers Advisor classes of shares), (ii) Class B and Class C shares of any Fidelity fund that offers Advisor classes of shares, (iii) Advisor B Class shares and Advisor C Class shares of Treasury Fund, and (iv) Class A Units (New and Old), Class B Units (New and Old), Class C Units, Class D Units, and Class P Units of the Fidelity Advisor 529 Plan. Reinvested income and capital gain distributions will not be considered purchases for the purpose of completing your Letter.

The following disclosure replaces similar information in the "Fund Distribution" section beginning on page 33.

Special Purchase Shares. Certain Class A and Class T shares may be subject to a CDSC of 0.25% of the lesser of the cost of the shares at the date of purchase or the value of the shares at the time of redemption. These shares, referred to in this prospectus as "Special Purchase Shares," are Class A and Class T shares sold by investment professionals who receive a finder's fee from FDC equal to 0.25% of their purchase amount. Finder's fees are paid only in connection with purchases of: (i) Class A shares in amounts of $1 million or more that qualify for a Class A load waiver; (ii) Class A shares in amounts of $25 million or more; and (iii) Class T shares in amounts of $1 million or more. Investment professionals may be compensated at the time of purchase with a finder's fee at the rate of 0.25% of the purchase amount. Finder's fees are not paid in connection with purchases of Class A or Class T shares by insurance company separate accounts.

Investment professionals may be eligible for a finder's fee at the rate of 0.25% of the purchase amount on the following purchases of Class A shares of all funds made through broker-dealers and banks: an individual trade of $25 million or more; an individual trade of $1 million or more that is load waived; a trade that brings the value of the accumulated account(s) of an investor (including an employee benefit plan (except a SEP or SARSEP plan or a plan covering self-employed individuals and their employees (formerly a Keogh/H.R. 10 plan)) or 403(b) program) over $25 million; a load waived trade that brings the value of the accumulated account(s) of an investor (including an employee benefit plan (except a SEP or SARSEP plan or a plan covering self-employed individuals and their employees (formerly a Keogh/H.R. 10 plan)) or 403(b) program) over $1 million; a trade for an investor with an accumulated account value of $25 million or more; a load waived trade for an investor with an accumulated account value of $1 million or more; an incremental trade toward an investor's $25 million Letter; and an incremental load waived trade toward an investor's $1 million Letter.

Investment professionals may be eligible for a finder's fee at the rate of 0.25% of the purchase amount on the following purchases of Class T shares of all funds made through broker-dealers and banks: an individual trade of $1 million or more; a trade that brings the value of the accumulated account(s) of an investor (including an employee benefit plan (except a SEP or SARSEP plan or a plan covering self-employed individuals and their employees (formerly a Keogh/H.R. 10 plan)) or 403(b) program) over $1 million; a trade for an investor with an accumulated account value of $1 million or more; and an incremental trade toward an investor's $1 million Letter.

For the purpose of determining the availability of Class A or Class T finder's fees, purchases of Class A or Class T shares made (i) with the proceeds from the redemption of shares of any Fidelity fund or (ii) by the Fidelity Investments Charitable Gift Fund, will not be considered.

The CDSC will be assessed on Special Purchase Shares if they do not remain in Class A or Class T shares of Fidelity funds that offer Advisor classes of shares, or Daily Money Class shares of Treasury Fund, Prime Fund, or Tax-Exempt Fund, for a period of at least one uninterrupted year. Shares acquired through reinvestment of dividends or capital gain distributions will not be subject to a CDSC.

To determine the applicability of the CDSC, Class A, Class T, or Daily Money Class shares representing reinvested dividends and capital gains will be redeemed first, followed by Special Purchase Shares that have been held for the longest period of time. Special Purchase Shares held for less than one year will be redeemed last.

To qualify to receive a finder's fee, an investment professional must notify Fidelity in advance of the eligible purchase, and may be required to enter into an agreement with FDC in order to receive the finder's fee.

The CDSC on Special Purchase Shares will not apply to the redemption of shares:

1. Held by insurance company separate accounts;

2. For plan loans or distributions or exchanges to non-Advisor fund investment options from employee benefit plans (except shares of SIMPLE IRA, SEP, and SARSEP plans and plans covering self-employed individuals and their employees (formerly Keogh/H.R. 10 plans) purchased on or after February 11, 1999) and 403(b) programs other than Fidelity Advisor 403(b) programs for which Fidelity or an affiliate serves as custodian; or

3. For disability, payment of death benefits, or minimum required distributions starting at age 70 1/2 from Traditional IRAs, Roth IRAs, SIMPLE IRAs, SEPs, SARSEPs, and plans covering a sole-proprietor or self-employed individuals and their employees (formerly Keogh/H.R. 10 plans).

A waiver form must accompany these transactions.

To qualify for a Special Purchase Share CDSC waiver, you must notify Fidelity in advance of your redemption.

Supplement to the
Fidelity Advisor
Inflation-Protected Bond Fund
Institutional Class
June 29, 2004
Prospectus

<R>Effective June 1, 2005, the management fee has been reduced by 0.10% and FMR has agreed to limit fund-level expenses (which do not include 12b-1 and transfer agency fees). Had these arrangements been in effect during the fund's last fiscal year, net annual fund operating expenses would have been 0.53%. In addition, effective October 2, 2002, FMR has made voluntary arrangements, which may be discontinued at any time, to reimburse Institutional Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, and extraordinary expenses), as a percentage of its respective average net assets, exceed 0.50%.</R>

Effective April 4, 2005 changes have been made to simplify and expand access to Institutional Class shares of the fund. A complete list of the investors to whom Institutional Class shares are offered is included in this supplement.

The following information replaces the similar information found in the "Buying and Selling Shares" section under the heading "Buying Shares" beginning on page 11.

Institutional Class shares are offered to:

1. Employee benefit plans investing through an intermediary. For this purpose, employee benefit plans generally include profit sharing, 401(k) and 403(b) plans, but do not include: IRAs; SIMPLE, SEP, or SARSEP plans; plans covering self-employed individuals and their employees; or plans investing through the Fidelity Advisor 403(b) program;

2. Insurance company separate accounts;

3. Broker-dealer, registered investment adviser, insurance company, trust institution and bank trust department managed account programs that charge an asset-based fee;

4. Current or former Trustees or officers of a Fidelity fund or current or retired officers, directors, or regular employees of FMR Corp. or Fidelity International Limited (FIL) or their direct or indirect subsidiaries (Fidelity Trustee or employee), spouses of Fidelity Trustees or employees, Fidelity Trustees or employees acting as a custodian for a minor child, or persons acting as trustee of a trust for the sole benefit of the minor child of a Fidelity Trustee or employee;

5. Qualified tuition programs for which FMR or an affiliate serves as investment manager, or mutual funds managed by Fidelity or other parties; and

6. Non-U.S. public and private retirement programs and non-U.S. insurance companies, if approved by Fidelity.

<R>AIFBI-05-02 June 1, 2005
1.790683.106</R>

The following information replaces the similar information found in the "Valuing Shares" section on page 10.

The following information supplements the information found in the "Buying and Selling Shares" section on page 11.

The following information replaces the similar information found in the "Buying Shares" section on page 13.

The fund may reject for any reason, or cancel as permitted or required by law, any purchase orders, including exchanges.

For example, the fund may reject any purchase orders, including exchanges, from market timers or investors that, in FMR's opinion, may be disruptive to the fund.

The information regarding the four exchange limit found in the "Exchanging Shares" section on page 17 is no longer applicable.

The following information replaces similar information found in the "Fund Management" section on page 25.

Supplement to the
Fidelity^®
Inflation-Protected Bond Fund
June 29, 2004
Prospectus

<R>Effective June 1, 2005, FMR has contractually agreed to lower expenses to 0.45%, which includes a 0.10% management fee decrease and other contractual arrangements that will limit Inflation-Protected Bond's expenses.</R>

The following information replaces the similar information found in the "Valuing Shares" section on page 10.

The following information supplements the information found in the "Buying and Selling Shares" section beginning on page 11.

The following information replaces the similar information found in the "Buying Shares" section on page 12.

The fund may reject for any reason, or cancel as permitted or required by law, any purchase orders, including exchanges.

For example, the fund may reject any purchase orders, including exchanges, from market timers or investors that, in FMR's opinion, may be disruptive to the fund.

The information regarding the four exchange limit found in the "Exchanging Shares" section on page 14 is no longer applicable.

The following information replaces similar information found in the "Fund Management" section on page 20.

William Irving is manager of Inflation-Protected Bond Fund, which he has managed since November 2004. He also manages other Fidelity funds. Since joining Fidelity Investments in 1999, Dr. Irving has worked as a quantitative analyst and manager.

Supplement to the
Fidelity Advisor
Investment Grade
Bond Fund
Class A, Class T, Class B, and Class C June 29, 2004
Prospectus

The following information replaces the similar information found in the "Valuing Shares" section on page 9.

The following information supplements the information found in the "Buying and Selling Shares" section beginning on page 10.

The following information replaces the similar information found in the "Buying Shares" section on page 11.

The fund may reject for any reason, or cancel as permitted or required by law, any purchase orders, including exchanges.

For example, the fund may reject any purchase orders, including exchanges, from market timers or investors that, in FMR's opinion, may be disruptive to the fund.

The information regarding the four exchange limit found in the "Exchanging Shares" section on page 16 is no longer applicable.

Effective December 1, 2004, the following information replaces the similar information found in the "Fund Management" section on page 25.

Jeff Moore is vice president and manager of the fund, which he has managed since December 2004. He also manages other Fidelity funds. Since joining Fidelity Investments in 1995, Mr. Moore has worked as a research analyst and manager.

The following information replaces the similar information in the "Fund Distribution" section beginning on page 26.

The following information replaces the similar information for Class A and Class T found in the "Fund Distribution" section on page 28.