Evaluating weight loss for only the first 14 days shows absolutely nothing.
Yes, low carb will lead to more weight loss while consuming more calories than low fat during the first 2 weeks.
Because you lose water weight when you consume fewer carbs.
Bottom center and bottom right graphs show this: You lose almost no fat with the low carb diet, all the weight loss is fat-free mass.
Generally, body fat is what you want to get rid of, and what’s hard to get rid of.
Water weight drops in a few days without carbs, and will all be back after one cheat meal.
My other gripe is that the low fat diet was specifically one with high glycemic load. That’s not what anyone trying to lose weight would do on purpose. And finally, why are they comparing diets with different caloric intakes?
Yeah, I was only talking about what’s in the graph.
And what that shows (low carb consuming more calories while losing weight faster) isn’t possible for longer than a few weeks.
In my opinion, the reason why low carb works as a diet is that most people are addicted to simple carbs before they start a diet.
Cutting those out breaks the addiction, you stop getting those hunger cravings, which makes it easy to eat less calories overall.
But replacing simple carbs with whole grains and lots of fiber has the same effect.