A little background. I'm one month short of age 70 and struggling to lose weight. I am now 5'9" and was 5'10 1/2" when playing college football in the late '60s. Currently I'm at 192 lbs and was 185 lbs playing football. These days my weight is, shall we say, "distributed" differently. Not much belly fat but my jacket size has gone from a 40 to a 44. Nope, not lifting in the gym. But, to my question.....I've read a bit about a Ketogenic diet and am wondering what experiences others may have had with it. For the past couple weeks, maybe a month, I've been diligent about my calorie intake. I'm probably averaging about 2500 cals. a day. With good weather I'm riding more and in the past 10 days have done about 150 mi. at an average of 14 mph. This is with with significant climbing. What is puzzling me is my inability to lose weight. Not a lb. I feel good but am slow on climbs and attribute it to weight since even on the hardest output I don't get particularly tired and I recover really quickly. Could a ketogenic diet help me lose weight? Any other advice is appreciated.