According to the Dietary Guidelines for Americans those who achieve and manage a healthy weight do so most successfully by being careful to consume just enough calories to meet their needs, and being physically active.
Prema Smernicama prehrane za Amerikance, oni koji ostvare i upravljaju zdravom težinom to najuspešnije čine tako da paze da samo konzumiraju onoliko kalorija koliko je neophodno da bi zadovoljili svoje potrebe i da bi bili fizički aktivni.