I think a unit of insulin is a huge amount. One too many is the difference between me waking up and going to work, or waking up drenched in sweat jibbering complete rubbish and scaring the husband.
Equally, a unit less than I needed for dinner is the difference between a very pleasant evening with friends and an evening spent with my tongue stuck to the roof of my mouth and a fuzzy headache while I battle to get my blood sugar down from the ceiling.
In my world a unit of insulin is a big thing, it’s massive. A unit of insulin to me looks like a biscuit, half an apple, a small yoghurt or 5 fruit pastilles.
I generally use between 50 and 60 units a day (although I get really stroppy when ignorant travel insurance companies ask me how many units I use a day as if the answer will give them any meaningful information, but I digress). Do you know what 50 units of insulin looks like? Its nothing. Tiny, miniscule, I take at least twice as much medicine to sooth an irritating cough several times a day.