V.C.
Shaklee. They are one of the very few companies that actually make safe and effective vitamins and have the clinical research to back it up. Not only do the supplements get absorbed, but they are absorbed in exactly the right place in the digestive system--one reason liquid multis are not a good idea. http://www.healthforlife.shaklee.com
BTW our bodies cannot absorb D3 if there is also a magnesium deficiency.