Risks of Ultra-Processed Foods
Ultra-processed foods usually contain high levels of added sugar, oils/fats, and refined starch. They change the composition of bacteria in the gut and play a significant role in causing obesity [3] and weight gain.
Ultra-processed foods contain low levels of vital nutrients and bioactive compounds that play a significant role in the prevention of colorectal cancer [4], such as vitamin D [5], calcium [6], and fiber. Ultra-processed foods include processed meats, which is a popular risk factor for colorectal cancer.
Asides from poor nutrition, scientists discovered that processed foods also contain food additives, like dietary emulsifiers, and artificial sweeteners, some of which are known to increase pro-inflammatory potential of the gut microbiome, which may cause carcinogenesis.
Studies have shown that certain types of ultra-processed foods such as processed meat products like hot dogs, sausages, and salami are linked with different types of cancer. Studies show that sugar-sweetened beverages may also cause colorectal cancer. The study further proves the need for policies that limit ultra-processed foods and policies that enhance the consumption of low-processed foods or unprocessed foods to improve public health.
Examples of processed meats include:
- Sausages
- Hot dogs
- Salami
- Lunch meat
- Bacon
- Ham
- Corned beef
- Beef jerky
Nitrites are a major additive during the manufacturing process for these meats. Nitrites are known to cause cancer or worsen certain medical conditions. According to the World Health Organization, there is enough evidence to show that processed meats can cause cancer. According to a 2019 study, regular consumption of processed meat is the most common cause of colorectal cancer.