Technically, your metabolism is the process by which your body breaks down food and converts it into energy. Un-technically, it's that thing that you want to speed up as much as possible to help you lose weight. For that, we're here to help. While your metabolism is largely hereditary and can slow down with age, research shows some foods, behaviors, and activities can raise or lower your metabolism, therefore changing the amount of energy your body burns during a specific period of time. While some trendy approaches to boosting metabolism have gained attention in recent years - intermittent fasting, apple cider vinegar, etc. - there's no evidence to suggest they have any significant effect on metabolism and could even have a negative effect on your overall health. Stick to these 31 science-backed metabolism boosters.