I sprang into Spring excited to start running more and ended up hurting my knee. I took a month-long break from running and CrossFit classes to heal and also did a bunch of traveling, so I was eating like crap. All that added up to some weight gain, and my usual 16:8 intermittent fasting (IF) schedule wasn't helping me drop those pounds. I decided to try alternate day fasting (ADF). What Is Alternate Day Fasting? Alternate day fasting (ADF), a form of intermittent fasting, involves fasting one day, eating the next, and repeating. If you need to, you are allowed to eat on fasting days, the recommended amount being 25 percent of your total calories. For example, if you've calculated that 1,800 calories a day is the amount you need to eat in order to lose weight, on a fasting day, you'd eat no more than 450 calories. On nonfasting days, you'd eat 1,800 calories. Why I Tried ADF First and foremost, I spoke with my doctor, the registered dietitian I was s