Eating a lot of carbs instead of protein didn’t seem to raise the risk of dying from heart problems in this group, even though it did raise the risk of dying from any cause.

People in Korea who ate a lot more carbs than protein were slightly more likely to die sooner than those who ate a more balanced amount.

People in Korea who ate way more carbs than fat were more likely to die from heart problems than those who ate more fat and fewer carbs.

People who ate a lot more carbs than fat were a bit more likely to die from any cause, not just heart problems.

When Chinese adults eat more carbs, they tend to eat less fat and protein, and this might be why their metabolism doesn’t work as well.

Eating lots of saturated fat doesn't always lead to heart disease—it depends on what you eat instead. If you swap it with healthy foods, you might be fine, but if you swap it with junk food, it could be worse.