Is it dangerous to not eat within 15-20 mins after taking Novarapid?

Depends entirely on the person, when I was still using Novorapid I had to take it about 20-30 mins before breakfast if I didn't want a humungous spike in my blood glucose levels (sometimes even longer if my blood sugar was higher), however if I took it 30 mins before dinner I would need to be chugging down sweets/food before that 30 mins was up
But as I say its different for everyone, it can be different at different times of the day as well

 

If you take your novorapid & then don’t eat your at risk of a hypo, it’s not a given as some people do need a longer gap before the insulin kicks in but 15-20 mins is a good rule to stick to whilst your getting used to how your body reacts to insulin.

It’s sometimes annoying but you just have to plan ahead. That can be a bit difficult if your eating out or getting a take away so I usually end up dosing when the food arrives in the knowledge that it won’t kick in straight away.

 

I allow myself about 30 mins with Novorapid. I'll go hypo if I don't eat within that time.

 

Depends on what your bloods are to begin with if I'm high I will leave longer between eating and injecting. Bloods normal range I give before eating