What Should We Eat? Evidence from Observational Studies

Observational studies provide a wealth of important correlations between diet and disease. There is a clear pattern of dietary habits that is associated with reduced rates of a multitude of common illnesses, including heart attack, cancer, stroke, diabetes, and hypertension. In some cases, interventional studies have proven the benefits of dietary change; in others, there is insufficient evidence to prove causation. Based on the existing...