A new study from Harvard shows that simply cutting carbs or fats from your diet won't necessarily lead to better heart health. The key is to focus on the quality of the foods you are eating. Diets that are lower in carbs or fats can support heart health, but only if they are based on high-quality, mostly plant-based foods.

The study analyzed data from nearly 200,000 adults and found that diets rich in whole grains, fruits, vegetables, legumes, nuts, and plant oils were associated with a lower risk of coronary heart disease. On the other hand, diets heavy in refined carbs, animal fats, and animal proteins were linked to a higher risk. This research suggests that it's not about cutting out specific macronutrients, but rather about choosing healthy, minimally processed foods for optimal heart health.