Decades of aggressive advertising have convinced many Americans that they need to take a daily vitamin pill to remain in good health. Yet, few people can accurately describe the role vitamins play in a healthy diet. Vitamins are essential biochemicals needed in very tiny quantities to catalyze metabolic reactions. For example, Vitamin K starts the [...]

Vitamins A, D, E and K are referred to as fat-soluble vitamins because they are found in animal fats and plant oils. They are absorbed into the body in the small intestine along with dietary fats. People consuming very low-fat diets (less than 10% of calories from fat), individuals taking certain medications including Xenical or [...]