The only way anyone is able to know exactly what is in a product is to either do a lot of studying on the matter of read the nutrition label. Be warned however, because while companies are not allowed to falsify information on the label, they can mislead people by splitting up a package into servings or requiring a separate ingredient.
“Nature” refers to biological/genetic predispositions impact on human traits, and “Nurture" describes the influence of learning and other influences from one's environment.
