Not all carbohydrate sources affect the body in the same way. Carbs in general can be really good for you — they’re the body’s preferred source of energy, and many carb-heavy foods such as wheat bread, brown rice, potatoes and fruit contain important nutrients and benefits. Cutting out carbohydrates can have all kinds of strange effects on your body. Refined carbohydrates are a category of foods that have had most of the fiber removed. Fiber is beneficial for your gut bacteria and aids in digestion. Studies show that eating refined carbohydrates in excess can cause inflammation in the body. It’s thought that the lack of fiber can contribute to the growth of “bad” bacteria in the gut that fuel inflammation.