Water soluble vitamins are those vitamins that dissolve in water and are excreted in the urine. Because these vitamins are not stored in the body, they need to be replenished daily. The water soluble vitamins are: vitamin C (ascorbic acid) and the B-vitamins: thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyridoxine (B6), biotin (B7), folic acid (B9) and cobalamin (B12). Vitamin C is found in citrus fruits, tomatoes, potatoes, bell peppers, broccoli, Brussels sprouts, spinach and other leafy greens. The best way to get vitamin C is to eat a variety of fresh fruits and vegetables. The B-vitamins are found in whole grains, dark leafy greens, legumes, nuts and seeds. B-vitamins are also found in fortified foods such as cereals, breads and energy bars. The best way to get the water soluble vitamins is to eat a healthy, balanced diet that includes a variety of fresh fruits and vegetables, whole grains, legumes, nuts and seeds.