Cancer is one of the most feared diseases in the world today. While we often focus on genetics or environmental pollution, it’s easy to overlook something closer to home—our daily diet. What we eat may quietly be increasing our risk of developing cancer. In a recent video that's making rounds on social media, Dr. Saurabh Sethi, a Harvard-trained gastroenterologist, on his Instagram account @doctor.sethi with 1.1million followers shared a video that highlighted six foods we often eat without a second thought—foods that research has linked to cancer development and progression.Here’s a closer look at those six foods, and healthier swaps that can protect your health. View this post on Instagram A post shared by Saurabh Sethi (@doctor.sethi)]]>Ultra-Processed MeatsThink sausages, bacon, salami, and deli meats. These are convenient and packed with protein—but they come with a big catch. According to the World Health Organization, these meats are classified as Group 1 carcinogens. That means there’s strong evidence linking them to cancer, particularly colorectal cancer.Dr. Sethi points out that the nitrates and preservatives used to keep these meats fresh can harm the gut lining and trigger cancerous changes over time. If you're craving something savory, try grilled tofu, boiled eggs, or home-cooked chicken instead.Sugary DrinksFrom sodas to packaged fruit juices and flavored iced teas, sugary drinks are everywhere. But did you know they can do more than just spike your blood sugar? According to Dr. Sethi, they also contribute to chronic inflammation—a key player in cancer. Studies have linked excessive sugary drink consumption to a higher risk of breast, pancreatic, and colon cancers.Want something refreshing but safe? Choose coconut water, lemon-infused water, or herbal teas.Deep-Fried FoodsCrispy snacks like fries, pakoras, and samosas are comfort foods, especially during monsoon or festive seasons. But when food is deep-fried—especially in reused oil—it can produce a chemical called acrylamide. This compound has been linked to cancer in various studies.Instead of deep frying, try air-frying, baking, or even pan-roasting your favourite snacks. You’ll cut down on harmful compounds without compromising too much on taste.Charred or Burnt MeatsLove a good barbecue? Be careful. Cooking meats at high temperatures, especially until they’re charred or burnt, can produce harmful chemicals like heterocyclic amines (HCAs) and polycyclic aromatic hydrocarbons (PAHs), both linked to cancer risk.Dr. Sethi suggests marinating your meat and adding herbs like rosemary, which can help reduce these chemicals. Or better yet, try steaming, baking, or slow cooking your meals for a safer—and often more flavorful—experience.AlcoholMany people assume a drink or two is harmless. But even moderate alcohol consumption can raise your risk of certain cancers, particularly breast and liver cancer. Alcohol affects hormone levels and interferes with the body’s ability to repair DNA.Healthier alternatives? Fermented drinks like beetroot kanji, kombucha, or even plain sparkling water with lemon can keep you refreshed—without the risks.Ultra-Processed Packaged FoodsInstant noodles, chips, and ready-to-eat meals might be a time-saver, but they’re loaded with preservatives, artificial flavoring, and very little nutritional value. Dr. Sethi warns that these foods promote chronic inflammation, which is closely linked to cancer.Choose fresh, homemade options like oats upma, mixed veg khichdi, or millet porridge. These dishes are not only filling but also full of fiber and essential nutrients.Don’t Forget to MoveDiet is just one piece of the puzzle. Studies consistently show that regular physical activity plays a big role in preventing cancer. Exercise helps regulate hormones, reduce inflammation, and maintain a healthy weight—all of which support your body in fighting off disease.