Nothing to do with milk formula.
This is yet another Zebra diagnosis but it’s a great one for illustrating some of the relevant anatomy. Let me know what you think.
Here’s the link to the article mentioned.
Rudinsky, Sherri L, and Michael J Matteucci. “Emergency Department Presentation of Superior Mesenteric Artery Syndrome: Two Cases in Marine Corps Recruits..” JEM 42, no. 2 (February 2012): 155–158. PMID 19111427