High-fructose corn syrup (HFCS) is a common sweetener found in numerous processed foods and sugary beverages. Consuming HFCS can lead to a spike in blood sugar levels and may contribute to gastrointestinal discomfort, especially for individuals with diverticulitis. Excess sugar intake can disrupt the balance of gut bacteria and potentially worsen symptoms of the condition. You can check food labels for the presence of HFCS and opt for products with lower sugar content that don't have the ingredient.

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