I mean that's essentially what I said in my response. 'Calorie restriction' is a life long approach (I don't even like calling it a restriction because that's not really what is happening once you hit your goal weight and re-adjust calorie in-take). When I weighed 160, I ate x amount of calories which maintained my weight at 160. I dropped 20 pounds eating at about a 500-700 calorie deficit for about 3-4 months. After hitting 140, I calculated how many calories I would need to eat to maintain 140 at my exercise level, and I have pretty much done just that for the last two years. I don't even look at how much I am eating anymore because I know how much I need to eat to maintain 140. It's not even a 'calorie restriction' at this point, and it didn't matter if I was eating carbs as long as I balanced protein, fat, and carbs. It's simply how much food I need to eat to be the weight I am.
I have discussed this with my doctor, and I have read about it. There are several ways of accomplishing one's goals, but your original post made it seem like eating carbs and losing weight is impossible. That simply is not true.
Not to trying to argue too much, I just wanted to point out that you can find success eating carbs too. I don't think everyone can find success doing what I did. Everyone has different needs and what not. As someone who plays basketball frequently, I can't imagine a carb-less diet. I think I would fall apart.
If the average person's body requires/burns 2000 calories a day, and you start eating only 1500 calories to lose weight, your body will eventually stop burning 2000 calories a day. Instead it will become adjusted to the 1500 calories you've accustomed it to.
Now the 1500 which used to be a deficit is now not going to burn any body fat, when it was burning 500 calories worth of body fat.
So whatever your weight is at when 1500 becomes your new baseline, you're going to plateau there. No more weight loss.
Let's say you decide you want to go back to a normal 2000 calorie day a diet after this, you're now eating 500 calories more than you should be so you'll start adding on 500 calories of body fat a day. So your only choice to not start putting on weight is to continue eating 1500 a day, even though you're not even losing weight while eating less.
If you instead were to switch to a keto diet and eat 1500 calories a day, not only would your metabolism stay at 2000 calories a day, it would actually start to increase to 2000+.
Add in IF and you're burning even more body fat.
I'm strictly talking overweight people here, looking to lose weight. If you're just looking to maintain your weight, continue eating carbs. It's not really a problem and it sounds like you know how to maintain for yourself.
I'm just merely trying to help spread the word because keto was/is very helpful for people who are very serious about weight loss.
That's perhaps too broad of a statement. Certain classes of athletes would certainly benefit from carbs. Eliminating carbs will reduce your capacity for high intensity athletic output:
http://jap.physiology.org/content/70/4/1500.short
The most cited article I've seen on natty bodybuilding says carb it up my droogs:
https://jissn.biomedcentral.com/articles/10.1186/1550-2783-11-20
Yeah, I should clarify I'm mainly talking about average overweight folks looking to lose weight. I don't know much about fueling athletes, so I'm sure there's answers out there. Athletes are usually in shape and not trying to lose a lot of weight fast, which is who I'm referring to.