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Food poisoning can happen after eating at Denny's. Common food poisoning symptoms reported by Denny's customers are nausea and diarrhea. A case of Hepatitis A was confirmed in two workers at Denny's in Kissimmee, FL November 2019, but the most reported diagnosis is Salmonella.

Last updated: March 23, 2023


I ate at here last night and a couple hours later I was throwing up and had diarrhea | Symptoms: Nausea, Diarrhea, Vomiting See Less

Suspected food poisoning. Symptoms: Nausea, Vomiting, Stomach Pain, Chills, Headache
Suspected source: food here
Onset: 4 to 12 hours
Duration: 4 to 12 hours
Sick: Me | Symptoms: Nausea, Vomiting, Stomach Pain, Chills, Headache See Less

I ate here yesterday with my family. It was a busy day so it was the only Meal I had eaten . I had gotten the French toast slam with the eggs being over easy and a coffee to drink. I went with three other people. They... See More all ended up being fine but they also didn’t get eggs. Got home around 8 went to sleep around 1 am. Woke up at 330 feeling so nauseous And sweaty. That’s when it began , Been vomiting all night, ever hour couldn’t sleep at all , thought I was dying. I’ve been hungover before but this was 10 times worse. Would not eat here again. | Symptoms: Nausea, Vomiting See Less

Ordered the nachos. Didn't eat the whole portion because it's huge, ended up giving the half I couldn't eat to a friend in a to-go container who then had to go somewhere and now I feel bad for giving him that because I'm pretty sure it's the... See More reason I'm currently struggling not to vomit while on the toilet with a really bad stomach ache. I went to the restroom at the restaurant too before I left but just had to pee, it didn't seem very clean, there was what looked like actual dirt from the ground somehow on the walls and the toilet paper was annoyingly high up despite there being only one stall and it being what looked like the size of a typical ACCESSIBLE stall... I felt fine for about 10 minutes after I left and THEN it hit me. I was gonna walk back to the mall but ended up running into Home Depot instead to find another restroom quickly. Almost puked on the street. The experience there today was overall bad for a LOT of reasons, so I highly doubt I'll ever go back to that food place. Edit: I would've posted the receipt but they didn't give me one to keep. I got one with a barcode to scan at the counter to pay for it and wasn't given a different one or that one back. Left with free Diet Coke refill I'll probably dump or drink flat later because I don't feel like I can put anything in my mouth and keep it down right now. | Symptoms: Nausea, Vomiting, Stomach Pain See Less

Slimy, gray “prime rib” on Cobb salad. Immediately nauseous, diarrhea and bad stomach ache. | Symptoms: Nausea, Diarrhea, Stomach Pain See Less

Last night around 7pm or shortly after feb/8/2023 my family and I ate at this located @ 10428 se stark my daughter and i ate chicken fried chicken with mashed potatoes White gravy herb corn she had the same accept for the corn she had red fried... See More potatoes my other daughter had the banana salted Carmel pancakes with hash brown scramble eggs and turkey bacon. What we hadn't eaten we took to go . All three of us had stomach aches by time we made it home. But wasn't sure it was the food until we ate our left overs and we started feeling really sick. Each of us had Stomach pains diarrhea and vomiting still ongoing today. 2/9/23 | Symptoms: Nausea, Diarrhea, Vomiting, Stomach Pain See Less

Drinking Coke, My daughter and I are both sick, horrible stomach pains, diarrhea, gas, nausea, they only thing that we had the same was Coca-Cola. | Symptoms: Nausea, Diarrhea, Stomach Pain, Gas See Less

Went here and had several stomach pain right before we left was nauseous for hours | Symptoms: Nausea, Stomach Pain See Less

Always slow no matter how empty the restaurant is and I always end up sick in some way or another | Symptoms: Nausea See Less

A week ago, Beacon Ate omelet and the first big bite tasted funny | Symptoms: Diarrhea, Nausea, Vomiting See Less

Last 30 days