Some weight losing tips.
Hint: Some years ago I was weighing myself many times per day, like just before going to work and just after walking home, I put the results into a spreadsheet. As you can imagine, one could not get a diet plan from this “activity” hobby. But one thing was very clear the most reliable consistent figure from day to day, was the reading taken first thing in the morning just after getting out of bed.
The most effective diet plan I found is apart from not eating between meals, is to eat just enough to be hungry before the next meal or reduce you meal size slightly smaller portion of meal each week, and as your stomach shrinks you get less craving for food (it could be that you stomach shrinks better when you are younger, but I have not tried it for many years). It does work I have lost weight in the past putting up with a little hunger pain for a hour or so before my next meal, you just need to be strong minded, and not get into snacks, when normally you would eat the meal not because you are hungry but because it is meal time. Early 2016 my best diet was taking (simple) carbohydrates out of my meals, but make sure you replace it with more proton.
Chilled water (maybe better with ice in it) helps reduce hunger pains.
I almost forgot, if you go for a long walk, the weight lose might not go from the weighing scales until the second day, of course providing you do not do anything in the mean time to spoil it, then it might show up a few days later.
Some people are more efficient at getting nutrition from their food, like me. I blame it on my mother that must of ate better as she got more government child support for each child she had during the baby boomer years. So as for me I put on weight as soon as I look at it, unlike some people who can eat a horse each meal and not get fat like my youngest sister.
One of New Zealand's MP's used to be obese-obese before he had a operation, and went on to be prime minister.
Now I have said all of that, it could be that VO2 measurement for over weight could be superior to the B.M.I. system. Right now who knows? Say no more.