For many people, focusing on lowering dietary cholesterol alone has little effect on their blood cholesterol level. Limiting saturated fat (found mainly in animal-based foods like meat and cheese) may help lower blood cholesterol. But the source of calories used to replace those missing calories makes a difference. Substituting with unsaturated fats (found in fish, nuts, and plant oils) is likely beneficial, while substituting with refined carbohydrates (foods full of white flour or sugar) is not.
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