One A Day® Advanced Series Multivitamin with Probiotics is the first and only† multivitamin that includes Probotics to help support digestive health and immune health by supporting the 70% of the immune system found in the digestive tract.* One A Day® Advanced Series Multivitamins, from the nutritional experts on One A Day, is an advanced line of complete multivitamins that provide nutritional support with the latest combinations of specific ingredients to support your health and wellness.*