Carbs and blood glucose: what actually matters when you are cooking
Total carbohydrate per serving is the number worth watching. Everything else is a refinement.
· Medically reviewed by Dr Anita Raval, Registered Dietitian, August 2026
If you are cooking for someone managing type 2 diabetes, there is one number
that does most of the work: how much carbohydrate is in a serving. Not sugar
specifically, and not calories. Carbohydrate, total.
That is why it is the headline figure on every recipe here, and why the diabetes
friendly filter is a hard ceiling of 30g a serving rather than a badge somebody
stuck on.
Three things that make a real difference
Fibre slows everything down. A meal built on pulses, whole grains and
vegetables raises glucose more gently than the same carbohydrate count from
white rice. It is why the high fibre filter exists alongside the carbohydrate
one, and why they are worth using together.
Fat and protein slow it further. A plain jacket potato and a jacket potato
with beans and cheese behave differently, even allowing for the extra carbs.
Portion beats almost everything. A recipe that comes in at 28g a serving is
a 56g meal if you have two. No filter on this site can help with that.
What we cannot tell you
Everyone responds differently, and the same meal can behave differently on
different days. If you have a glucose monitor, it knows more about you than any
recipe database does. Use ours to narrow the field, and yours to make the call.
Speak to your diabetes team before making a significant change to how you eat.
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