You can put a lower bound on it by using the volume of each drink and knowing roughly the percentage of alcohol in each, and then multiplying by your 7 cals/gram. The amounts I added on top of that purely alcohol-based calorie count varied (and were wild guesses), but I did bear in mind that tia maria is pretty much made of sugar. The beer and wine contain nearly the same amount of alcohol, and the tia maria is about half as much. So they could in fact quite plausibly all have the same number of calories (to a rough approximation).
I'm interested that you used the new "big" 35/70ml measure for the tia maria, rather than the standard 25/50ml one.
Generally IME when dieting you're encouraged to drink things like white-wine-and-soda (because it lasts longer than white wine alone) or spirits-and-diet-mixer (because it's the lowest cals in general) and to alternate with soft drinks. As a possibly interesting data point a 275 ml bottle of Beck's is 5 points on slimming world and the alcohol free version (same size) is 3 points. I don't think the alcohol really is only 2/5 of the calories in beer though or your poll's answers didn't go high enough!
When I was slimming in 2002ish I definitely found I lost weight *better* on weeks where I saved my points for alcohol rather than food, so I suspect that those who say the calorie content of the ethanol isn't directly metabolised the same way as usual may well be right.
Um, feel free to hide this comment if you think it contains too much in the way of spoilers.
I'm interested that you used the new "big" 35/70ml measure for the tia maria, rather than the standard 25/50ml one.
Generally IME when dieting you're encouraged to drink things like white-wine-and-soda (because it lasts longer than white wine alone) or spirits-and-diet-mixer (because it's the lowest cals in general) and to alternate with soft drinks. As a possibly interesting data point a 275 ml bottle of Beck's is 5 points on slimming world and the alcohol free version (same size) is 3 points. I don't think the alcohol really is only 2/5 of the calories in beer though or your poll's answers didn't go high enough!
When I was slimming in 2002ish I definitely found I lost weight *better* on weeks where I saved my points for alcohol rather than food, so I suspect that those who say the calorie content of the ethanol isn't directly metabolised the same way as usual may well be right.
Um, feel free to hide this comment if you think it contains too much in the way of spoilers.