The evidence with low carb diets and cholesterol levels is mixed. Some studies have shown that very low carbohydrate intake will assist with lowering LDL cholesterol, but the results of such research are by no means conclusive. Diets which place an emphasis on reducing carbohydrate intake and upping protein correspondingly probably have the least helpful effect in this regard since fatty intake is usually associated with increased levels of cholesterol. That said, overall weight loss can help as part of a more healthy dietary regime.