“Calorically challenged” and “calorically gifted” are euphemisms to say that someone possesses too many calories—he or she is fat. Both “calorically challenged” and “calorically gifted” have been cited in print since at least 1993.
 
The terms have less frequently been used to describe high-fat foods. For example, an ice cream sundae with everything on it might be described as “calorically gifted” or “calorically challenging.”
 
 
27 April 1993, Wisconsin State Journal (Madison, Wisconsin), “Commentary” with Sprout & Baggot, pg. 2D, col. 6:
The calorically challenged folks in snowmobile suits are your friends…until you screw up.
 
8 September 1993, San Jose (CA) Mercury News, “If it was fried, Elvis would eat it,” pg. 4A:
Fried chicken, chicken-fried steaks, fried peanut butter and banana sandwiches and fried dill pickles swelled “the King” into a “calorically challenged” 255-pounder before he died,
 
Google Groups: alt.personal.ads
an36558
Sep 23 1993, 12:21 am
(...)
If you are calorically gifted, follicly challenged or terminally inconvenienced, please do not respond.
     
Googl Books
Stereo Review
Volume 58
1993
Pg. 22:
Glimpsed recently at a Manhattan performance by avant-rock avatars Pere Ubu: Actor George Wendt, famous for his portrayal of calorically challenged barfly Norm Peterson on the in-reruns-forever sitcom Cheers.
 
1 April 1995, Spartanburg (SC) Herald-Journal, “Tommy Boy’ Not Bad, If You Don’t Think Too Much” by Jay Carr (Boston Globe), pg. B12, cols. 5-6:
It had been named “Fat Chance.” But, anticipating the massed fury of the calorically challenged, Paramount went with the sentimental “Tommy Boy” instead.
   
Google Books
Living Somewhere Between Estrogen and Death
By Barbara Johnson
Nashville, TN: Thomas Nelson
1997
Pg. 41:
I’m not fat . . . I’m calorically gifted!
 
Google Books
Whiskey Sour
By J. A. Konrath
New York, NY: Hyperion
2004
Pg. ?:
I suppose the PC term would be glandularly imbalanced or calorically challenged.
 
Google Books
Formerly Fat, Forever Fijian Lean
By Frederick M. Beyerlein
Bloomington, IN: AuthorHouse
2005
Pg. 30:
Victorian, Rubenesque, corpulent, obese, big-boned, heavy-set, plump, calorically challenged, hefty, or one of the many other words developed to side step saying the fat word.
 
Google Books
The Disability Studies Reader
Edited by Lennard J. Davis
New York, NY: Routledge
2006
Pg. 164:
For instance, “vertically challenged” is considered a humorous way to say short, and “calorically challenged” to say fat.
 
DebbieSchlussel.com
February 8, 2013, - 4:54 pm
Weekend Box Office: Side Effects, Identity Thief
By Debbie Schlussel
(...)
The thing is, as that is happening, a woman (the calorically-gifted—or is that “differently digestive?”—Melissa McCarthy) from Florida is using his name and information (which she tricked him into giving her over the phone) to open multiple credit accounts, live the high life, and ruin his credit.