Provides sustained release throughout the day. Helps maintain energy levels. Helps the body to metabolize carbohydrates, fats and proteins.. A factor in the maintenance of good health and formation of red blood cells. Jamieson B Complex 100 mg Timed Release provides each essential B vitamin in a high potency timed-release dose to help boost metabolism and promote energy levels. It also helps to ease stress, anxiety and depression while helping to maintain a healthy immune system | Jamieson B Complex 100 mg Timed Release - 90's Size 90 caplets