Scientists found that certain chemical signatures in your body, based on what you eat, match up well with how healthy people say their diet is—and these signatures also link to heart disease risk. This means they might be a better way to tell if someone’s eating well than just asking them.

Scientists have created a score based on what people say they eat, and it turns out this score matches real chemical signs in the body and can predict heart disease risk — so it might be a good way to tell if someone’s diet is healthy without needing blood tests.

Scientists have created a kind of metabolic 'fingerprint' from what people say they eat, and it turns out this fingerprint matches real eating habits and also links to heart disease risk—so it might be a reliable way to measure diet without asking people again.

Multiple large-scale meta-analyses of prospective cohort studies demonstrate no statistically significant association between dietary saturated fat intake and incidence of coronary heart disease or cardiovascular disease.

Eating too many unhealthy carbs or too much meat and processed food—even if you're on a low-carb or low-fat diet—can raise your risk of heart disease by about 12–14% compared to eating healthier versions of those same diets.

People who eat healthy low-carb or low-fat diets tend to have certain natural body chemicals that are linked to better heart health—like lower bad fats and higher good cholesterol.