In general, certified nutritionists believe in the power of FOOD... you shouldn't NEED to take a vitamin supplement of any kind because you are eating a well-balanced, healthy diet which provides all the vitamins and minerals your body needs. Most supplements offer a concentration of vitamins that is completely unneccessary and could do great harm when taken in excess. People tend to believe, "More is better" and that is NOT the case with vitamin supplements.
Whether or not the Vitamin C supplement is actually acid-free or not... eat an orange