It is unlikely your vitamin needs are significantly increased above the Dietary Reference Intakes (DRI) and a vitamin supplement may not be necessary, but a dietary assessment may reveal vitamin deficiencies is the best message for the athlete.
This is defined as a set of reference values used to plan and assess nutrient intakes of healthy people.
Vitamin needs in the body aren't increased above the reference intakes and so intake of supplement isn't a necessity.
Read more about Dietary Reference Intakes here https://brainly.com/question/10666065