Depends on your goal. You could also keep your diet consistent and do more exercise to produce a deficit. If your goal is longevity, then this may be a viable o

Depends on your goal. You could also keep your diet consistent and do more exercise to produce a deficit. If your goal is longevity, then this may be a viable option. If your goal is to be faster, stronger or bigger, then this is probably not the right approach. But reading article the conclusion seems to be that we simply do not know enough about how this all works. Giving absolute ranges of calories also seems like the wrong approach. There are differences in sex, in height in activity levels etc. etc. etc. Would someone on a 2000 calorie diet who was moderately active fare better than someone on a 2500 calorie diet who was more active? I do not think we have the answer to that.