Hi Joel
Congratualtions to your brother. I'm female, but hate dressing up, hate weddings (not married to the lovely guy I've been with for over 10 years) and find weddings the most difficult situations I've had to deal with in the 14 years since my diagnosis - far more difficult than travelling to locations such as South Georgia, 4400m up the Andes, competing in and marsalling at adventure races and mountain marathons etc, and nowher enear as interesting nor as much fun. Why are weddings so difficult? Mainly the lack of information about when and what food will be available, alcohol etc. Weddings might be OK if the stress was outweighed by enjoying the situation, but it's not. Often I have to completely avoid drinking alcohol art weddings as my partner's one fault is that he's never learned to drive. What have I found helps? Always having blood glucose meter, insulin pen, sweets and muesli bars to hand - at least you'll have jacket pockets, but I have to carry a handbag, which I only ever carry at weddings (and one trip to investiture at Buckingham Palace). Thank goodness all but one of my eight cousins is now married - and none are onto second marriages yet!
On other occasions, I do drink alcohol - usually a maximum of 2 pints of beer or half a bottle of wine in a night - and always eat something before starting to drink alcohol and alternate alcohol with non-alcoholic drinks, which is when the lack of sugar free drinks is shown up - diet coke if you're lucky, otherwise perhaps still or sparkling mineral water. Fruit juices are nowhere near sugar free, so may or may not be suitable, but mixing with sparkling water can help.