What goes around, comes around. Or something like that. I've never been good with popular sayings.
But trends in nutrition, especially nutrition for people with diabetes, seem to go in cycles. At the beginning of the 20th century, low-carb was the dogma for people with diabetes. Then after the 1950s it slowly switched to high-carb, low-fat. Now many people are returning to the low-carb approach.
But with each swing in trends, much old knowledge is lost, and scientists seem to reinvent the...
