Yep,,there is no such thing as "spot reduction" when it comes to weight loss. Just like Dr.Vinod said, you lose the fat you put on last,,,first. So if your body just stored fat on your arms, you're going to notice a difference on your arms first. Resist the temptation to go with a fad diet. Lifestyle change is the way to go. Just as you didn't put on weight quickly, it won't come off quickly but it will come off. Go slowly.