I would advise meeting vitamin requirements from diet over nutritional supplements. It is not that tough to balance a
daily requirement of
vitamins in diet. For example, a lemon pr an orange taken in juice or sprinkled over a salad will take care of the daily vitamin C requirement, milk, yoghurt, or cheese will take care of the calcium, vitamin A, and D, and a serving of fish, mackerel, tuna, or sardines, would serve the daily requirements for vitamin D, calcium, and some omega-3 fatty acids.