This is factually incorrect and based on opinion rather than biochemistry. If you are looking to lose weight, this is not good advice. It may be average advice at best and even then, it's only really good advice for someone that is looking for a balanced lifestyle. If you are seriously over weight, this will not work for you.
Learn to ignore the calorie in calorie out rhetoric that has been proven to be false time and time again through studies where calories were kept the same for a group of people with their macro nutrients altered. The ones that ate high carb diets, like pretty much every fitness calculator on the web, lost less weight than those on a high fat low carb diet. There is clear cause and effect demonstrated in these kind of isolated studies.
If you want advice, a push and some motivation to lose weight. Head on over to
/r/keto. Friday is coming up and it's great to check out people progress pics. Some people are losing 3lbs+ a week living this lifestyle. Not only is it great for weight loss, there are a plethora of other health benefits that go with it.
Look into it, you won't be disappointed.