Is it essential to take a multi vitamin? I'm currently taking vit d3, magesium & executive b stress formula

Absolutelynot. The majority of studies show no. Enefits from taking multivitamins unless you are deficient! in which case you should first turn to food sources to address the deficiency. Don't buy into the hype about the value of these pills. There is little to no value, and potential harm in taking them. You definitely don't need them at your age and you are probably duplicating between the products you alread.