So when you look st the label what percentage should the sugar be under 10 for carb and sugar also is there a cook book you can recommend and thanks for your help x
As an example of what I look for, and because they're on my desk..
Ryvita Dark Rye crispbread. The 'headline' boxes based on 10g cracker tell me
Energy 34kcal
Fat 0.1g
Saturates 0.02g
Sugars 0.3g
Salt 0.07g
But those aren't the numbers I'm interested in. So then there's a more detailed nutritional info box that tells me
Carbohydrates 6.7g, or 66.6g per 100g. So they're the crispbreads of the Beast. Or they're high in carbs. But a lot of that is in fibre, so with it's low sugar content, unlikely to spike BG immediately. For me, they don't seem to raise my BG much. Then..
KP Dry Roasted Peanuts. Those have the same standard info boxes as the Ryvita, so again looking at the nutritional info, 7.2g per 100g of carbohydrates.
Then there's fibre, which is listed seperately and gets more complicated. It's carbohydrate, but we don't digest fibre as easily as other carbs, so may not convert all the fibre into glucose. Plus fibre helps keep us regular, give or take some conditions like IBS, and the rest can dive into figuring out stuff like high/low GI foods to balance energy levels between meals.
TL;DR version though, avoid things that are high sugar/high carb.