Simultaneous Analysis of Water- and Fat-Soluble Vitamins
Growing health consciousness has inundated the market with an ever-expanding array of vitamins, supplements, and sports nutrition products intended to boost the diet with nutrients not adequately consumed in foods. Manufacturers need to quantify vitamin content not only to differentiate products’ value but also to meet regulatory and labeling requirements.
The 13 “essential” vitamins are common ingredients in health and nutrition products. Getting sufficient intake of essential vitamins insures overall health and well-being, proper metabolism, immune response, and numerous other functions in the body. Vitamins are classified as either “water-soluble” or “fat-soluble.” Water- and fat-soluble vitamins not only act differently within the body but also require different methods to analyze effectively due to their dramatically different hydrophobicities and solubilities.