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Unsaturated fats are an essential part of your daily diet. Your body uses fats for energy, to keep cells working, produce hormones, and help your body absorb oil-based vitamins (A, D, E, and K). Since ...

Vitamins are classified as either fat-soluble or water-soluble based on how the body absorbs and stores them. The fat-soluble vitamins—A, D, E, and K—are absorbed with fat and stored in the liver, ...