I've been a runner for the past 3 years until I injured my ankle doing a half marathon (in Vibram's on pavement) in February. Over the next 6 months I ate like I was still running and put on 25 lbs. This is the first time for me to be overweight. (Age 18-28 = 165lbs - this August = 189)
After a pudgy trip to the beach in August I decided to sign up for MFP and try calorie restriction. 1300-1500 cal/day is hard. Weight loss was very slow doing that, 1ish lb loss a week. In early September, after extensive reading, I decided to try keto.
I rank that decision with quitting smoking. The bodyfat has been melting off, I'm down to 177. I'm completely satiated all day at 1300 calories. I feel great, even healthier than I did eating carbs in my running prime. I have done little to no exercise. I have only run 4 times so far while on keto the last few weeks, three 5k and one 10k. Last weekend my new-found energy inspired my buddy to try keto.
To anyone reading this thread thinking about trying a ketosis diet; Do it.