Yes. More arcade, less realism, but more useful.

Olrik-Jhornar was accurate with the original mod... one cup of strawberry has only 49 calories, so yes, this is a departure from realism to gain game play value.

JUST To Increase Food Calorie Values?

Changes are as follows to this line in each .h file:
const float CALORIES_NUM VITAMINS_NUM
file food_carrot.h was 100 now 263 was 0.80 (no change)
file food_lettuceleaf.h was 50 now 250 was 0.40 now 0.49
file food_strawberry.h was 30 now 267 was 1 (no change)
file food_tomato.h was 150 now 283 was 0.80 now 0.95

This makes the food value greater and worth growing (similar to potato food value). There does not seem to be any difference to other growing parameters (growing time and seed failure rate seem similar to potato).