I am 70 and I have done intermittent fasting for two years, mostly with the 18/6 protocol with 2 meals a day. I have lost 20 pounds and now I seem to have leveled off with losses. I am trying to do one meal on Mondays now to see if it’ll start me losing again, and when I can, I’ll do one meal on a second day each week. I really like the IF lifestyle. No counting calories or carbs. I don’t eat after 2 p.m. so I have no more heartburn at night. I used to be prediabetic but my A1c has dropped to normal levels now due to IF and weight loss. My blood pressure is now good as well. I will do IF the rest of my life, happily.