It may also be worth noting that people with excess body fat will absorb fat soluble vitamins into the excess fat and it will not be available for the thousands of functions in the body that need them until the person is fat adapted. Ideally the high priority goal should be to remove the excess fat but until they do they will need more than the RDI of each component. How much more gets complicated as there are not yet any good tests for testing how much was absorbed into the fat.