Which food would be the better (healthier) choice? a food with
140 calories with 25 calories from fat
90 calories with 55 calories from fat
100 calories with 30 calories from fat
100 calories with 60 calories from fat

Your best option here would be the first, 140 calories with 25 calories from fat. The less fat you have in your meals(we'll go with saturated here) the more calories must be made up of carbohydrates or protein, among other various vitamins and minerals which are good for the body.