'Low carb' is not 'no carb'. No adult needs to eat processed carbs - it is not a dietary requirement. Children don't need to either, but if they are burning off lots of energy then a little wont do them any real harm - but it's best if 90% of it comes from 'real' food - not white bread, white pasta & 'junk'. I agree that it's a bit joyless for kids if they can't have any junk (crisps, cake, sweets) but they certainly don't 'need' it and shouldn't be having the vast quantities that most children in the UK are having.
A few months ago I would have agreed with Exotic & others who say if you are at an ideal weight then simply cutting back on what you eat and exercising more is probably 'good enough' - but most people doing that do feel hungry a lot and deprived and certain foods are still not good for you, no matter what your weight.
I would suggest that everyone reads Dr John Briffa's book 'escape the diet trap' whether you need to lose weight or not - it's really eye opening & informative - what harm can it do to read it and then decide what you think? Most libraries have copies.
I now eat a low carb diet and that gives me about 30g of carb a day, mostly from veg. I'm a vegetarian and I'm not eating my body weight in cheese or cream - so anyone who has the meat/cream/cheese original version of a 'no/low carb diet/Adkins' in mind when they read/hear 'low carb' couldn't be further from the reality if they tried
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I love that I'm not constantly hungry as I was when eating a carb heavy diet - I couldn't seem to feel satisfied no matter how much pasta or whatever I ate. Which is what I think GP was referring to - that you feel actually hungry around the time another meal is 'due', but you don't get that constant 'I need' feeling that most people get with a carb rich diet.
Now that I eat low carb, I don't 'crave' anything and my 'health indicators' are much better.