It's true. It's said that for every gram of glycogen, you need three grams of water to store it. The average person has about 500g of glycogen, so you'd have around 2kg weight loss just in glycogen and water from starting a low carb diet.

I basically agree, I'm just wondering if there is expert consensus on this chain of reasoning, i.e.

1. Low carb-dieting tends to produce stunning weight loss results in the first few weeks with far less actual fat loss.

2. As a result, many people tend to feel falsely that they have found the silver bullet for weight loss in low-carb dieting, i.e. a way to circumvent the calories in/calories out paradigm.

I personally am pretty convinced of the above two points, but I am wondering if there is expert consensus.