Published: Oct 24, 2013 6:42 PM EDT

LEHIGH ACRES, Fla.-A Lehigh Acres family is fighting for their 4-year-old son after his only food supply expired Tuesday.  Michael Gonzalez has a rare food allergy called Food Protein Induced Enterocolitis Syndrome in which nearly every kind of food makes him sick.

His story has grabbed national headlines recently, as his family's supply of Michael's only safe form of nutrition, an amino acid-based medical formula is running out.

"Now that the expiration date has hit and the formula is running out, when it does, there's pretty much nothing," his mother Jennifer said.

Jennifer Gonzalez keeps a list of all the food Michael has tried and rejected on an online blog.

"He'll start vomiting and then hours later he'll have diarrhea and that will last about a week, so he actually goes into shock," she said.

Jennifer says the company that makes the formula changed an ingredient.  She says the new recipe makes Michael violently ill, and even landed him in the hospital.

"It's really hard because the company is just going to let these kids expire, and that's not something you should ever say about a kid," she said.

Michael's parents have taken the issue up with company executives and even the Food and Drug Administration, but so far, they say it hasn't helped their son.

"Our son is our whole world and we won't stop fighting until he has something safe and until we have answers," Jennifer said.

To learn more about Food Protein Induced Enterocolitis Syndrome and Michael's story, click here.