Starting a high-fiber diet? Build up slowly
You may want to take several weeks to increase to the recommended amount of fiber in your diet. As you begin to increase your daily fiber intake, start slow and build up gradually. This allows your body to adapt. Too much fiber too soon can cause a bloated feeling and abdominal cramps.
Fiber absorbs water that helps move it though the digestive tract. So as you add fiber to your diet, remember to drink plenty of fluids. This is especially true if you’re taking fiber supplements, which contain none of the liquids found in high-fiber foods.