A new study of French adults provides new details about the link between high fiber and low heart disease risk. Researchers found that whole grains are linked to lower body mass index (BMI), blood pressure and levels of a blood protein called homocysteine, which is connected to heart disease risk. Fruit fiber is associated with lower blood pressure and less abdominal fat. Fiber from vegetables appears to lower the risk of high blood pressure and high homocysteine concentrations. And fiber from nuts, dried fruit and seeds is linked to a lower BMI, a lesser risk of abdominal obesity and lower blood sugar levels. As is common with scientific findings, the information is expressed as "increased fiber lowers heart risk." The reality is that high fiber is natural to humans and has been part of our diet for millions of years. The unnatural reduction of fiber is very, very recent to humans and causes heart disease.