You can meet the recommended daily intake of 1.2 grams of calcium by consuming high-calcium foods, such as soy or almond milk, tofu, and fortified cereals. Brown seaweed has been studied for its beneficial effects on the pancreas, kidneys, and liver. Just try including more in your diet, such as with a daily juice or smoothie. Otherwise, you can do simple things to boost or “cleanse” colon health naturally at home. You can purchase a colon-cleansing product, or you can even get a colonic irrigation or enema. One important organ in the digestive system is the colon, also called the large intestine.