We can do a lot more analysis on this data set to systematically investigate these nutrients and their effect on their endpoints.

We wanted to see if women who had hysterectomies differed in some way from those who did not, and whether the hysterectomy itself had an influence on heart disease.

We cannot rule out some small residual influence of the surgery itself on cardiovascular events. But it looks as if women with hysterectomies have more heart disease because women who get hysterectomies also have more risk factors.

The take-home message is that lower-fat diets don't cause weight gain, and for weight maintenance this is a reasonable diet for people to follow. If we could just get people to maintain their weight, we'd be halfway there on this nation's obesity epidemic.

It gives promising validation of a dietary pattern that lowers fat and raises carbohydrates. None of the bad things happened that people accuse carbohydrates of doing.

Large studies are needed involving thousands of people, and the basic safety research in animals and humans needs to be done before we really understand the risks vs. benefits of this product.