I think that the best way to feed is with a Keto diet, this consists of eating the maximum amount of protein and healthy foods rich in fat such as fish, meat, avocado, eggs, cheese and fruits, while carbohydrates are restricted as cereals, flours, legumes, vegetables and fruits. This produces a weight loss more quickly than when resorting to a habitual diet. Here is a link with more information of rapid loss weight. https://tinyurl.com/ketoloseweight
This said, I do prefer low-carb balance compared to SAD. I can speculate a lot about SAD and about the non-discrimination of different carbs – like, lactose vs. fructose. It is only my opinion, that fructose has its value in the nutrition (black bears get body fat for hibernation eating fruits) yet somehow we miss to notice that naturally fructose had been available in humans’ diet only seasonally, while nowadays juices of all kinds are available year-round; not to mention fructose additives to sugar-rich products. And yes, fructose is addictive, and yes, this is part of the evolution for 200 thousand years of humans.
I have never tried a keto diet (don’t like the idea myself) but I am what you could call moderately (or “liberal”) low carb. Around 125g max net per day, which as you likely know is half the RDA of 250g. I get most of the rest of my energy from protein and some for fat. The RDA of protein, around 50g, is only just enough to sustain muscle of a sedentary or low movement individual – and this is proven by the fact that a lot of people who hit the gym eat easily 2-3x the RDA of protein.