The big one is calorie counting. It's not fun. After a while you think you can do without and just estimate your caloric intake. You're wrong. Very, very wrong, as I had to find out. I'm back to counting.
And of course, cutting out sugar as much as possible.
Yes, sports, but it has very little direct effect.
Except for increases in muscle mass, metabolic drive, lower cortisol levels, better sleep, etc.
Sports is a big ingredient in health, though.
If you're asking for _my_ strategy I have a few very basic and easy rules:
No alcohol. Not even socially. It does absolutely nothing for you, even the much incorrectly allauded red wine (there are better/cheaper ways of getting antioxidants).
No processed foods. Shop the perimeter of the grocery store where the produce, meat, and dairy is - stay away from the inner aisles.
Fast occasionally. This is usually a 20-24 hour fast once every 3-4 weeks.
Some form of level 2 cardio for at least 20 minutes every day and lift weights. The lifting frequency is up to you but my routine is Monday, Wednesday, Friday, Saturday. The more muscle you put on the faster your metabolism is.
Remove the vices from your life. This is easy to execute but takes time to do well if you use a slow elimination. For instance when I started losing weight I removed one vice a month, and it could be specific as I wanted. It started with beer, then white bread, then potato chips, and so on. At some point I had nearly a couple of dozen things on my list that I had eliminated and no desire whatsoever to consume them. I allow myself those things as treats (I still enjoy cake when it's someones birthday) nowadays but the constant craving for them has gone away.
EDIT: Forgot sleep. Get more than you think you need.
Within three weeks, I went from having the highest blood pressure of my adult life to having the lowest.
It’s pretty hard to gain weight on his diet. I’ve done it once before (when I was much younger and more active), and I had to eat almost 2x my normal portion sizes to maintain weight.
There are no fat people who consistently run 50 miles a week.