I eats lots of cereal, cornflakes, muesli, shreddies, things with dried fruit, granola, Weetabix all sorts of things and if the mood takes or I have time, toast, bacon, eggs sausage and have done for years.
HOWEVER
If you eat some of the cereal I mention above and you calculate the insulin/carb ratio and inject you may well find that you suddenly drop and could possible hit a hypo before you go out, NOT recommended.
Thing is with various cereals is they are high carb and SLOW to digest. For example I had 102.9 grams of carb this morning so I injected 8.5 which will cover the morning bit, now I know from trial and error that round about 3.5-4 hours later I will start to spike so will inject again to counter it.
I have Libre which makes it easier to see the spike develop but when I don't I am blood testing at around the 3.5 hours after eating. But that just me.
It really is a case of trail and error I'm afraid
