RRR has two meanings in medicine, including relative risk reduction rate and brain nutrients, in which brain nutrients, mainly distributed in the frontal cortex hippocampus, occipital cortex and other parts of the infant brain, are mainly the key areas to bear memory and learning.1. Relative Risk Reduction Rate (RRR): abbreviation of the term in the field of public health, which refers to the ratio of the absolute risk reduction rate to the rate of the occurrence of the events in the control group, is a professional research term in medicine; 2. Brain nutrients: an isomer of vitamin E, the most biologically active form of vitamin E. It usually promotes brain neurodevelopment in young children, and the vitamin E that exists in nature consists of many subtypes of vitamin E, of which RRR is a component that is usually better absorbed in the body and has a stronger effect on neurodevelopment. RRR is also able to coordinate with other nutrients in the body to perform physiological functions, such as working synergistically with lutein, so it is also able to promote the nervous system, especially neuronal reproduction or proliferation. Usually the relative risk reduction rate is relatively rare in life, and brain nutrients have an important impact on the development of young children, so should be appropriate intake of adequate brain nutrients, can be taken orally, directly through the gastrointestinal tract absorption into the body, so as to play the corresponding role.