If I eat plenty of fruits and vegetables is a multivitamin supplement still necessary? If so, is there one you recommend?

Many multi-vitamins are low quality, filled with inorganic and congestive vitamins our bodies cannot use. If you eat a diverse, organic, plant-based diet and include some superfoods and your GGS--you'll generally be getting much more than most multivitamins. If you do want to be safe and use one, a good choice is the multi made by Garden of Life, which is "raw" and absorbable by the body.