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Certain foods can potentially exacerbate aspirin-induced stomach pain by increasing gastric acidity or irritating the stomach lining. Aspirin, a nonsteroidal anti-inflammatory drug (NSAID), can cause stomach irritation and ulcers due to its inhibition of prostaglandin synthesis, which normally protects the stomach lining. Consuming certain foods along with aspirin may amplify these adverse effects.

Spicy and fatty foods are known to irritate the stomach and could potentially worsen aspirin-induced stomach pain [1]. Additionally, alcohol consumption can increase gastric acid secretion and exacerbate stomach irritation [2]. Citrus fruits and juices, such as orange and grapefruit, are acidic and may further irritate the stomach lining [3].

It is important to note that individual sensitivities and reactions to specific foods vary. Therefore, it is recommended to pay attention to one's body and identify any personal triggers that may exacerbate aspirin-induced stomach pain.

Sources:
[1] <https://www.healthline.com/health/stomach-pain-after-eating#causes>
[2] <https://www.ncbi.nlm.nih.gov/books/NBK535451/>
[3] <https://www.drugpatentwatch.com/drugs/aspirin>