Unfortunately I'm with the other guy here.
I think reducing excess sugar consumption is necessary but not sufficient to get lean for some obese individuals like myself.
When I started keto 7 years ago I lost 100lbs. Then I gained it all back - staying pretty strict keto the entire time. I haven't had what you'd call "processed food" or "sugary food" in nearly a decade if you exclude a small % of keto-style things like dark chocolate (85%).
Now back down 45-50lbs (depends on how you count) and hopefully going to continue. But this time I cut out protein, too. It could be that both carbs and protein raise insulin enough to cause obesity in some people. Or maybe seed oils in even the tiniest doses. Those are my two main hypotheses: https://exfatloss.substack.com/p/hypotheses