330 CMR 13.08
Statements of Calorie Content
(1) The label of a dog or cat food may bear a statement of calorie content, provided:
(a) That the statement shall be separate and distinct from the "Guaranteed Analysis" and
shall appear under the heading "Calorie Content"; and
(b) that the statement shall be measured in terms of metabolizable energy (ME) on an as fed
basis and must be expressed as "kilocalories per kilogram" ("keal/kg) of product, and may
also be expressed as kilocalories per familiar household measure (e.g., cans, cups, pounds);
and
(c) an affidavit shall accompany the request for label review or registration, substantiating
that the calorie content was determined by:
1. calculation using the "Modified Atwater" Formula; or
2. in accordance with a testing procedure established by AAFCO.
(2) Comparative claims shall not be false, misleading or given undue emphasis and must be
based on the same methodology for both products.