The most effective time to take B vitamin tablets is after breakfast. Taking them at this time is conducive to gastrointestinal absorption. If B vitamin tablets are taken in the morning, it will affect the absorption of the drug, resulting in lower intake. . Taking B vitamin tablets at night will cause the body to secrete sugar for metabolism, resulting in insomnia. B vitamin tablets contain vitamin B1, vitamin B2, vitamin B6 and other substances. After taking them, they can supplement the vitamins and other nutrients needed by the body. In addition, vitamin B complex can promote the metabolism and renewal of the body after being taken. After the body absorbs it, it can excrete the waste from the body, thus balancing the body's nutrition and maintaining the renewal of organs. When is the best time to take B vitamin tablets? People who take vitamin tablets are recommended to take them at noon. Taking them before going to bed or in the morning will not only reduce the intake, but also taking them before going to bed at night can cause insomnia and other abnormalities in the body. .