Use butter as a treat. Too much sodium contributes to high blood pressure. Fiber protects against colon cancer and lowers cholesterol. Fiber may not prevent precancerous growths in the colon. Eat fruits, vegetables, and whole grains for a range of benefits.
Fiber helps prevent constipation as well as heart disease, diabetes, and obesity.
Before going whole hog on the rendered pig fat or doing some other 180-degree turn in your diet, you need to know how seriously to take a new study. If industry or an advocacy group funded the research, a little extra skepticism is in order.