N=1 but... I was severely overweight for decades and went to a very low carb diet to lose weight. It worked. I lost a hundred pounds in 7 months and have stayed steady at my ideal weight now for over three years. A very low carb diet also dramatically reduces HFCF as well as most highly processed foods and it definitely had a dramatic effect improving my emotional and mental state too, even though I wasn't expecting…
>I lost a hundred pounds in 7 months Am I right to assume you were working pretty closely with your doctor on this?
I proceeded anyway and kept her updated. After she saw my remarkable results, she became much more interested in VLC approaches, although she still doesn't recommend them for most of her patients because she feels the dramatic shift and rigor required to be successful are beyond most people's ability to stick with for more than a few months.
I agree that some people find maintaining VLC long-term is too demanding. Although it hasn't been difficult for me to maintain, I may not be like most people.