EXHIBIT 31.1
 CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
  1.
    
    I have reviewed this annual report on Form 10-K (this Report) of Lifevantage Corporation (the Registrant);Based on my knowledge, this Report does not contain any untrue statement of a material fact or omit to state
a material fact necessary to make the statements made, in light of the circumstances under which such
statements were made, not misleading with respect to the period covered by this Report;3.
    
    Based on my knowledge, the financial statements, and other financial
information included in this Report, fairly present in all material
respects the financial condition, results of operations and cash flows
of the Registrant as of, and for, the periods presented in this
Report;4.
    
    The Registrants other certifying officer and I are responsible for
establishing and maintaining disclosure controls and procedures (as
defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal
control over financial reporting (as defined in Exchange Act Rules
13a-15(f) and 15d-15(f)) for the Registrant and have:
 a.
    
    Designed such disclosure
controls and procedures, or
caused such disclosure controls
and procedures to be designed
under our supervision, to ensure
that material information
relating to the Registrant,
including its consolidated
subsidiaries, is made known to
us by others within those
entities, particularly during
the period in which this Report
is being prepared;b.
    
    Designed such internal control
over financial reporting, or
caused such internal control
over financial reporting to be
designed under our supervision,
to provide reasonable assurance
regarding the reliability of
financial reporting and the
preparation of financial
statements for external purposes
in accordance with generally
accepted accounting principles;c.
    
    Evaluated the effectiveness of
the Registrants disclosure
controls and procedures and
presented in this Report our
conclusions about the
effectiveness of the disclosure
controls and procedures, as of
the end of the period covered by
this Report based on such
evaluation; andd.
    
    Disclosed in this Report any
change in the Registrants
internal control over financial
reporting that occurred during
the Registrants most recent
fiscal quarter (the Registrants
fourth fiscal quarter in the
case of an annual report) that
has materially affected, or is
reasonably likely to materially
affect, the Registrants
internal control over financial
reporting;
 5.
    
    The Registrants other certifying officer and I have
disclosed, based on our most recent evaluation of internal
control over financial reporting, to the Registrants
auditors and the audit committee of the Registrants board of
directors (or persons performing the equivalent functions):
 a.
    
    All significant deficiencies and material
weaknesses in the design or operation of
internal control over financial reporting which
are reasonably likely to adversely affect the
Registrants ability to record, process,
summarize and report financial information; andb.
    
    Any fraud, whether or not material, that
involves management or other employees who have
a significant role in the Registrants internal
control over financial reporting.
  /s/ David W. BrownDavid W. BrownPresident & Chief Executive Officer
(Principal Executive Officer)