Recommended fiber consumption varies by age and gender, but it ranges between 21-38g per day. Considering Americans average roughly 15g of fiber per day, there is clearly room to grow.   
Fiber

 

“Years of research point to the health benefits of fiber for cardio-vascular health, blood glucose control, digestion and gut health, yet average intake is approximately half the recommended amount,” explained Joanne Slavin, Ph.D., RD, of the University of Minnesota and a member of the 2010 Dietary Guidelines Advisory Committee, while speaking at the 2012 Experimental Biology conference. “With more than 90% of adults and children falling short of meeting their daily fiber recommendations, the 2010 Dietary Guidelines for Americans classified fiber as a nutrient of concern, since it’s one of the critical nutrients most lacking in people’s diets.”

Manufacturers have sought to help consumers bridge the gap with fruits, vegetables and whole-grain foods, including whole-wheat bread, whole-grain cereals, brown rice, bran and oats. Clif Bar has introduced several high-fiber bars under its Luna Bar brand, an effort to blend healthy with indulgent. Squarely aimed at women, the Luna Fiber bars boast 7g of fiber, and the 70% organic snacks also feature calcium, folic acid, iron and vitamin D. The soft-baked, fruit-filled bars contain 120 calories each and can be found in such indulgent flavors as chocolate raspberry, vanilla blueberry and peanut butter strawberry. Those 7g of fiber come from a range of sources: organic oat fiber, organic inulin (agave extract), inulin (chicory extract) and whole grains. pf