Serenity, not knowing anything about you it's hard to know if you are just trying to lose the last couple vanity pounds or if you have been insulin resistant and on your way to metabolic syndrome or what your situation is. Anyway, you can become fat-adapted without having to go ketogenic, for one thing. You can also become fat-adapted through a healthy primal diet combined with running, too. I highly recommend Phil Maffetone's Big Book, either the general one for Health and Fitness (that's the one I have) or his Big Book of Endurance training.
According to Phil, fat adaptation is both a function of diet AND exercise. He specifically recommends running at what is called your Maximum Aerobic Fitness. He's got a formula for determining what your maximum heart rate should be and your fitness is determined by your performance at that heart rate. It's a very low heart rate. Embarrassingly low. You train at this heart rate and slowly improve your speed until you are able to run very fast at this very low heart rate. This is true aerobic fitness. The reason why it is true aerobic fitness is because you'll be using body fat for energy. Anything faster and you turn off that body-fat pathway and turn on the anaerobic pathway and start burning sugar for energy instead. If you've been running above your MAF, you've been sabotaging both your fat-burning adaptation AND your physical endurance and fitness and probably your weight loss, too. It's all very interesting. I bought a heart rate monitor and am looking forward to seeing how out of shape I truly am. I hope it's not too horrible.
Female, 5'3", 50, Starting weight: 163lbs. Current weight: 135 (more or less).
I can squat 192.5lbs, press 75lbs and deadlift 210lbs