The big advantage of low-carb for me is feeling full, satisfied and eating shed load of calories. If you feel peckish - have a handful of walnuts or almonds with coffee made with full cream. Fills you up great and does not affect your insulin level in any way whatsoever.
Obesity is a hormonal problem, not a problem of calorie imbalance. Our body does not count calories, it processes foods according to their composition. And a big plate of broccoli is not the same as a tiny slice of cake, even if the calories are the same.
I wish people would stop pedalling this fallacy about calories in calories out which has been debunked by hundreds of studies, especially long-term ones. All it does is makes you feel crap, hungry, cold and lowers your base metabolism permanently, so it will become harder and harder to maintain or lose weight in future.
It is not about calories, it is about nourishing your body properly with good quality fats, vegetables, berries, nuts and seeds, legumes. And not having crap which causes nutrient deficiencies, drives your appetite, makes you feel sluggish and tired.
Yes, you can eat 3000kkal a day and still lose weight, providing you don't eat foods that overstimulate insulin production (refined carbs and sugar). Fasting also does wonders for revving up metabolism and normalising insulin levels in the body. Which will translate into weight loss.
But your body needs to get used to burning fat, rather than incoming carbs every 3 hours. That takes time, from few weeks to a few months (took me longer). Once it's got there, you feel forget what hungry means and the worst you will feel is a bit of a dull sensation in the stomach which doesn't stop you functioning in any way.
Low carb offers great freedom to people like me who cannot handle cabs, who have to have 3 packets of crisps instead of one and cannot stop eating when a cake is put in front of them. This is all hormonally driven and is in no way a personal shortcoming or lack of moral strength. It is exactly like an addiction where you don't want to do it, but still proceed to self-destroy and feel awful after.
I am so pleased the new (and well-forgotten) research has shone a light on insulin and its effect on obesity and disease. We now know it is not overeating that drives weight gain, but higher baseline insulin levels and low carb tolerance. Sadly cake makes insulin go haywire, same as sugar and other refined carbs. Why advise people to eat cake, moderately or otherwise, if this is the very thing that makes them ill?