A man barbecuing in his backyard Tiki bar in Ormond Beach, Florida got a shock of his life after gagging on a can of Diet Pepsi.

Fred DeNegri was barbecuing when he popped open a can of Diet Pepsi, took a big gulp and started gagging, his wife, Amy, said.

When he emptied out the can down a sink, something heavy remained inside. His wife took over and shook the can over a paper plate until something resembling "pink linguini" slid out, followed by "dark stuff," Amy DeNegri said.

"It was disgusting," said Amy DeNegri, 55. "And now, what started out as a normal afternoon in our tiki bar has blown up into this crazy thing."

The DeNegris took pictures before calling poison control and the FDA, which showed up the next day to examine the can in question and collect it for lab testing.

The couple received a copy of the completed report last week from the Food and Drug Administration Office of Regulatory Affairs, which concluded the foreign matter appeared to be a frog or a toad.

"The animal was lacking internal organs normally found in the abdominal and thoracic cavity," the report notes.

A second, closed can from the same 36-pack of Diet Pepsi from Sam's Club, was also submitted for testing, according to Amy DeNegri. No abnormalities were detected, the report states.

The FDA also conducted an investigation at the local Pepsi bottling plant in Orlando from August 4 to 11 and "did not find any adverse conditions or association to this problem," spokeswoman Siobhan DeLancey said.

"We have not determined when or how the contamination occurred," DeLancey said in an e-mail.