Clinical recommendation	Evidence rating	References
Very low-carbohydrate diets are more effective than low-fat diets for short-term weight loss (six months or less) and do not cause adverse lipid profile changes.	B	2–11
A very low-fat diet, in combination with smoking cessation, exercise, and meditation, may improve cardiac perfusion and decrease angina symptoms.	B	9, 11, 16–22
The Mediterranean diet confers morbidity and mortality benefits in patients with known cardiovascular disease.	A	23–31
The American Heart Association 2006 diet and lifestyle recommendations consist of evidence-based dietary interventions that lower cardiovascular risk.	C	32