POWER OF ATTORNEY

KNOW ALL BY THESE PRESENTS, that the undersigned hereby authorizes Jeffrey L.
Quillen and Robert W. Sweet, Jr., each of Foley Hoag LLP, to execute for and on
behalf of the undersigned, in the undersigned's capacity as an officer of Zosano
Pharma Corporation (the "Company"), a Form ID, Forms 3, 4 and 5, and any
amendments thereto, and cause such form(s) to be filed with the United States
Securities and Exchange Commission pursuant to Section 16(a) of the Securities
Act of 1934, relating to the undersigned's beneficial ownership of securities in
the Company. The undersigned hereby grants to the attorney-in-fact full power
and authority to do and perform any and every act and thing whatsoever
requisite, necessary or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do personally present, with full power of
substitution, resubstitution or revocation, hereby ratifying and confirming all
that such attorney-in-fact, or such attorney's-in-fact substitute or
substitutes, shall lawfully do or cause to be done by virtue of this power of
attorney and the rights and powers herein granted. The undersigned acknowledges
that the foregoing attorney-in-fact, in serving in such capacity at the request
of the undersigned, is not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned's holdings of, and transactions in, securities issued by the
Company, unless earlier revoked by the undersigned in a signed writing delivered
to the foregoing attorney-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 29th day of September, 2015.

/s/ Konstantinos Alataris
Konstantinos Alataris