I am 58, on a (mostly) strict ketogenic diet since 2013. It has worked wonders for me and I expect to eat this way the rest of my life. I eat a lot of meat and eggs as I have found that combination (1) is something I enjoy very much, and (2) makes me feel the best. I didn’t have much weight to lose but I went from 175 to 160 (high school weight) and under 15% body fat. My energy level is consistently very good. Diet…
Weight loss comes from having a calorie deficit, not from keto. You can gain weight on keto if you eat more calories. You can achieve the same weight loss by just eating fewer total calories, without cutting carbs as well.
My weight remains stable as do my energy levels, so I can only assume that (1) I am getting exactly the right amount of calories from my diet, or (2) calories are an irrelevant metric.