The TLC diet was introduced in May 2001 when the National Cholesterol Education Program NCEP released new diet guidelines for people with high cholesterol and risks of heart disease. The American Heart Association AHA accepted and endorsed this report and began incorporating these recommendations into its materials on dietary and lifestyle change for people with high blood cholesterol. For people at high risk or who have known cardiovascular disease, NCEP and AHA now recommend the new Therapeutic Lifestyle Changes TLC diet to replace the "old" Step 1 and Step 2 diets.