Correct...hard to do with years of eating too much...but completely doable. Not sure if messing with cellular energy production body wide is a good idea though..
Amen. I am in my 60s and was obese most of my adult life. I lost 50 lbs in my 30s, but quickly regained all of it and more. At 60, I decided I would like to see my grandkids grow up and realized it was now or never. It took me over a year and a half but I was able to lose more than 100 lbs and I have kept it off for almost a year so far.
The most important factor was walking an hour first thing every morning before eating breakfast, first dragging myself along and eventually working my way up to a slow 3-4 mph jog (60 year old joints preclude ever running any marathons). I also cut out all processed foods and sugar and reduced my caloric intake to approx 1,500 calories a day.
The first few months I dropped over 10 lbs per month. My weight loss slowed over time and after 9 months I was averaging less than 5 lbs a month. Some months I either wouldn't lose any weight at all or would gain 2-3 lbs. Once I reached my weight goal (what I weighed when I was 18) I started weight training, mostly low impact isometric exercises, dumbells and stretch bands.
I now feel better than I have in 30 years. If I could do it, anyone can.