What will be Next?

I've noticed that lately I don't see as much about "counting carbs" on TV. Is that fad finally over? I hope so. I hope it is over for the mere fact I hate health fads. In the mid-80s, cholesterol was big and bad. Eggs were especially awful. In the late 80s, I counted calories as a junior high girl. That was the thing. 100, 200, 300, 400, etc. A hot pocket had 300 calories. That was good.

In the 90s, "fat grams" was next. One gram, two grams, three grams. Subway had X number of sandwiches with six grams of fat or less. Those were healthy.

In the early 2000s, "low carbs" was the craze. Everything from yogurt to yams were coming out with low-carb versions. If it was low in carbs, it was probably higher in fat.
Now there seems to be a kick on the "trans fats." Boxes of crackers are plastered with "O trans fats," whatever that means.

What will be next? Sodium? Protein? Calcium? Zinc? Iron?
Is anything good for us?