Hi Isabel, accurate scales are not really important as everything is relative. When your jeans slip down you will know you are successful and when you can skip around you will know you are fitter, healthier and the extra motivation may encourage you to splash out on more modern or newer scales. If today they said you weighed 300 pounds and next month they said 280 you might have lost 20 pounds but you would know in yourself that the numbers are pretty meaningless. Stick around, eat less of the bad foods, more of the good and drink plenty and you will experience results you would not have imagined would be so positive in such a realtively short period of time and you will not feel hungry either, so its a win, win all the way… Good Luck