CNN article: Low-fat? Low-carbs? Answering best diet question

When you change two things at once--less fat, more whole grains etc (really
more than one thing) how do you know which one caused the change? You can
only get accurate results when you test one thing at a time. Remove the
fat, don't change anything else. Add fruits or veggies or whole grains,
don't change anything else. d

Don Klipstein wrote:
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| I am not claiming that low fat is better than low calorie balanced
| diet, except for noting that the 8 year study on 49,000 women found a
| major decrease in colon polyps from replacing fats with whole grains
| and fruits and veggies.
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