Nutrients are those organic and inorganic compounds that a living organism must acquire from the environment to support essential life processes, including basal metabolism, growth and maintenance of body tissues, activity, reproduction, and maintenance of general health.
Because Invisalign is Orthodontic Treatment it is usually covered by your FSA. The best person to ask is your HR team and confirm that they don't have any stipulations in this regard. November 28th, 2011.
Also called a flexible spending arrangement, an FSA (not to be confused with an HSA) can be used for medical expenses, dental care and vision care. The amount you decide to contribute to the account for the year is deducted from your salary before income taxes.