I'd be relatively surprised if the Mars bar's calorie density went up after it was ruined in 2002. The old Mars bar was a beast: https://news.ycombinator.com/item?id=49245791 .
That's one reason I phrased it as density rather than weight or a raw count of calories. For density we would have the weight as a denominator.
It's conceivable that if they've removed better quality ingredients, calories per gram of weight could go up.
That's one reason I phrased it as density rather than weight or a raw count of calories. For density we would have the weight as a denominator.
It's conceivable that if they've removed better quality ingredients, calories per gram of weight could go up.