Powdered vitamins are increasingly popular due to their purported benefits in absorption and convenience. The science behind powder vitamin absorption primarily hinges on bioavailability, which is the proportion of a nutrient that enters the circulation and can have an active effect. Powdered forms are thought to enhance bioavailability compared to pills or capsules because they can dissolve more easily and be absorbed more quickly in the digestive tract. When you consume a powdered multivitamin, it is usually mixed with water or another liquid, which helps to break it down faster. This rapid dissolution allows the vitamins and minerals to be more readily available for absorption in the small intestine.