Pork cracklings are ultra-processed foods (processed through multiple stages and contain high amounts of fat, hydrogenated oils, and no fiber). To enhance flavor, processors may add additives, preservatives, and other ingredients like fish sauce and sugar for longer shelf life. All these factors are detrimental to overall health and can increase the risk of colorectal cancer.

Sausages are made from red meat, high in sodium and saturated fat, and processed through multiple stages like grilling and frying. This alters the meat's composition, producing carcinogens. Consuming many sausages can lead to weight gain and obesity. There's no need to eliminate sausages entirely, but limiting intake and combining them with plenty of vegetables, fruits, creates a balanced meal.

Hamburgers are appealing but not beneficial for the colon. They contain a lot of red meat, fried or grilled at high temperatures. Pork, beef contain heme iron (iron-containing hemoglobin) which can trigger oxidative reactions, leading to tumor formation in the colon.

Cookies are high in sugar, increasing the risk of inflammation, sugar accumulation leading to weight gain, obesity, and high blood sugar. To help prevent colorectal cancer, men should consume no more than 37.5 g or 9 teaspoons of sugar per day, women less, about 25 g or 6 teaspoons. Sugar can be present in fruit and starches, so consider the total intake.

Deep-fried foods are high in unhealthy fats, including saturated and trans fats. A diet high in unhealthy fats can cause molecular changes, leading to digestive tract cancers. Some foods to limit include foods fried in animal oil, french fries, fried chicken, and spring rolls.