I thought that low carb was the same as a low gl diet which I've been doing for ages. But now I read that the 4 hour diet bans oats which have a low gl and I presume noodles as they are also white although they have a low gl.
So what do most people mean by low carb? Is porridge and sugar excluded from a low carb diet? If so why? Porridge is a meal that release energy slowly and does not cause a surge in insulin levels. (Low GL even with sugar) I thought the whole idea of avoiding high carb food was that it caused a surge in insulin levels and therefore weight gain. I thought that I was doing a low carb diet, now I have no idea what low carb means, how it is defined or why. Is fruit high carb? Is there any connection with gl levels?
Do various low carb diets agree with each other on what low carb is or isn't?


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. Have a great day & keep up the awesome work! 
