A patient complains of occasional constipation. Your initial recommendations included fluid, increase activity, and a gradual daily intake of how much fiber?

• A. 10-14 grams.
• B. 15-20 grams.
• C. 21-24 grams.
• D. 25-38 grams.

Answer: (D)

Fiber works by increasing stool bulk and improving stool regularity, which helps relieve occasional constipation. To get this benefit without causing excessive gas or bloating, it’s best to introduce fiber gradually and work up to a daily target. For adults, the recommended range to aim for is about 25 to 38 grams of fiber each day, using a mix of soluble and insoluble fibers from foods like fruits, vegetables, whole grains, legumes, and oats. Aim to approach this level over several weeks while ensuring adequate fluid intake so the fiber can move smoothly through the intestines. Lower amounts, such as roughly 10–14 g, 15–20 g, or 21–24 g per day, are usually not enough to produce meaningful relief from constipation for many people.