Ever wonder how long it takes to burn off the holiday weight you put on? Well, according to research, it takes about 5 months for the average person to get back to their pre-holiday weight, but there are ways to avoid packing on those pesky holiday pounds. Eating more slowly and mindfully can help you control how much you eat. When you eat too fast, you don’t give your brain a chance to let you know when to stop, so it’s easier to overeat. Fast eaters may not chew their food thoroughly.