Losing weight is tricky. Despite their best efforts many people are unsuccessful when it comes to shedding those extra kilos. You may be following a rigorous exercise regime and really watching your calorie intake. But you still don’t lose weight. This fact has puzzled many and disheartened countless others. Now thanks to some scientists the reason why may be clear. They say that there is something called the ‘fat gene’. If you have this gene you may need to follow customized weight loss plans. Yes according to many dieticians and weight loss experts genetic testing may very well be the