I followed NT for the past 8 or 9 years. I found that I didn't lose weight, but my health improved and when I was pretty strict on NT, I would never catch colds or flu, even though my diabetes supposedly compromises my immune system. I was eating whatever I wanted, but in NT style, including desserts.
When I found a doctor who follows NT, he encouraged me to reduce carbohydrates and stop taking my blood pressure medication, and take less insulin. I still eat properly soaked/soured grains, but only once or twice a day now. I limit desserts, mostly the raw ice cream made with only 1/4 the amount of sweetening in the recipe. Otherwise, I don't limit calories or fat. My protein intake is moderate, probably 6 to 8 ounces of meat/poultry/fish or cheese daily, plus lots of raw milk.
I started eating this way in April, and have lost 20 pounds without trying. I'm still above where I would wish to be (in my dreams!) but I accept that my natural healthy weight is probably higher than the fashion ads or those weight charts would indicate.
People report that NT will put you at your healthiest weight -- if you need to gain, you will, and if you need to lose, you will.
Ann