Fascinating subject. Food at business meetings eh? Never used to happen in my day, you'd be lucky to get a biscuit with your coffee! LOL Come to think of it, you'd be lucky to get a coffee. Is food used as an incentive to get people to attend meetings?
There really is an etiquette to consider when getting food for a group of people at a meeting. You wouldn't provide something with nuts in it if someone had a nut allergy. People can also have an intolerance to dairy, wheat, gluten, yeast, histamine. IBS, migraine, coeliac, crohn's are just a few of the problems caused by intolerance to certain food items.
Being diabetic and wanting to avoid carbs a bit is just the tip of the iceberg and that's before we think of the soporific effect of eating stodgy food anyway.
Who was it really said "Let them eat cake". I'm not sure how other people avoid things they shouldn't really have, like booze when they're driving, but I don't ever enter into a conversation with myself and debate the merits or otherwise of some action, I know what the answer is anyway.
Good luck.