Quest Super Once A Day Multivitamin - Timed-Release - This Once A Day Multi contains 50 mg of each of the major B vitamins plus amino acid chelated minerals with a broad spectrum of augmenting synergists which maximize absorption and availability. Quest Super Once a Day is timed-release, and is designed for people with busy lifestyles who are under moderate to medium-high stress levels, and are seeking a Timed Release tablet. A good balance of vitamin and mineral intake is essential for optimal health. Due to busy lifestyles, poor dietary habits and modern-day stress, supplementation with the right multi is an excellent way of insuring that your body has all of the tools necessary to maintain optimum health and a strong immune system, to protect against toxins and to prevent cell damage.