When the normal functions of the large intestine (colon) are disturbed and one experiences crampy abdominal pain, bloating, and constipation or diarrhea, it is due to Irritable Bowel Syndrome (IBS). When one has IBS, the pattern of bowel movements might change over time, that is, bowel movements may occur either more often (diarrhea) or less often (constipation) than usual, like having more than three bowel movements in a day or less than three in a week.

• Lactose-free dairy products : The natural sugar found in milk is known as lactose. People having IBS show signs of intolerance to lactose, so they should avoid milk and dairy products. The consumption of milk products can be replaced with foods that are lactose free like oat milk, soy milk, or rice milk, and normal cheese can be replaced with hard cheeses, and brie and camembert cheese. One should check for dairy products labeled as lactose-free products before consuming them.
• Vegetables : For a healthy and balanced diet, one should eat green vegetables. Cruciferous vegetables like cauliflower, cabbage, and broccoli cause abnormal bowel movements and should be avoided. Instead, vegetables like green beans, carrots, spinach, sweet potatoes, and squash should be included in the diet. One should also consume cooked vegetables rather than having them raw as it might disturb the bowel movements.
• Fruits : The fructose present in fruits can also trigger IBS, so one should avoid fruits that are high in fructose and consume fruits or snacks that help with IBS like bananas, blueberries, grapefruit, oranges, and strawberries, which have low fructose.
• Fish : Rich in Omega-3 fatty acids, fish has anti-inflammatory properties that help in reducing inflammation in the stomach due to IBS. Consuming fish like sardines, tuna, or salmon is not only helpful for IBS, but it is also helpful in treating many other diseases.
• Lean meat and protein : Eggs, beef, pork, and white meat chicken are lean meats that are rich in proteins and are easy to digest in comparison to red meat. These protein-rich foods are perfect foods or snacks to help with IBS.
• Brown rice : Brown rice is nutritious as it has more minerals and has high fiber content in comparison to white rice, wherein the minerals are lost during processing. It also helps in dealing with IBS by encouraging normal bowel movements.
• Green tea : Green tea is rich in anti-inflammatory properties and has low caffeine content, making it a great option for those with the symptoms of IBS. Normal tea or coffee has high caffeine properties that can irritate the bowel movements, so replacing normal tea or coffee with green tea can help in dealing with IBS.