Nausea after eating can be caused by various factors, including difficult to digest foods, gastroenteritis, excessive alcohol consumption, GERD, blockages in the small intestine, gallbladder disease, food allergies, food poisoning, Crohn’s disease, irritable bowel disease, stomach ulcers, and celiac disease. Symptoms may include vomiting, diarrhea, chills, and fever, and treatment may involve medication, avoiding certain foods, and seeking medical attention in severe cases.
Some of the most common reasons that a person experiences symptoms of nausea after eating include eating foods that are difficult to digest or acute gastroenteritis. A stomach bug can produce feelings of nausea shortly after eating. Some individuals who consume excessive amounts of alcohol may also experience these symptoms. The connection between alcohol and food-related nausea may be the inability to digest certain foods when alcohol is present in the bloodstream.
Gastroesophageal reflux disease (GERD) and acid reflux disease are two conditions that can produce too much acid in your stomach, often causing nausea. Antacids can control some of these symptoms, but a prescription medication is required in many cases. GERD can be caused by a malfunction of the lower esophageal sphincter, although the stomach muscles may also have some type of connection.
A more serious cause of nausea after eating can be due to a blockage in the small intestine. A blockage of the small intestine typically requires immediate medical attention, as this can lead to toxic buildup in the bloodstream and other serious complications. Nausea after eating that is accompanied by constipation can also be related to a blockage within the small intestine.
Individuals suffering from gallbladder disease, especially in the advanced stages, may experience nausea after eating. If such individuals consume fatty or high-fat foods, it is common to feel nauseous after eating. Biliary colic, which is associated with gallbladder problems, can also produce eating-related nausea.
Some individuals have allergic reactions to certain foods, especially dairy products. Nausea symptoms after consuming these foods are common. In severe reactions, vomiting and diarrhea may also be present.
Food poisoning or eating food contaminated with bacteria or parasites can cause nausea for up to several hours after consumption. Other symptoms of food poisoning include vomiting and watery diarrhea. Chills and fever may also be present. Severe cases may require hospitalization.
Crohn’s disease or irritable bowel disease can cause nausea after eating in some individuals. These inflammatory bowel conditions typically also have other more common symptoms, such as chronic diarrhea and abdominal cramps. Cutting out caffeine may help some sufferers, as can avoiding certain foods that make you feel nauseous.
Some individuals who have stomach ulcers are prone to feelings of nausea after eating. In some cases, it helps coat the stomach with milk, but there are exceptions, such as in lactose intolerant patients. A stomach lining ulcer can be more serious if it is punctured. If the individual experiences internal bleeding, severe pain will typically accompany the nausea.
Celiac disease can cause bouts of nausea, mainly after consuming gluten-containing foods. Celiacs cannot digest gluten, so they must avoid the consumption of cereals. Wheat products that contain gluten can cause discomfort for sufferers, with symptoms that go beyond nausea. There are many gluten-free products available for restricted diets in recognition of the prevalence of this condition.
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