270 calories per bag sounds manageable until you realise you're probably eating two bags while watching people fish at the jetty. The fish paste from ikan parang or tenggiri is honestly decent protein, 13g per bag, but the sago flour base is pure carbs and the frying adds 80 calories of oil on top. To be upfront, the numbers here are a solid estimate, not a lab reading. Hard data on keropok lekor is thin and different aunties fry theirs differently, so treat 270 as a reasonable ballpark, not gospel. If you're watching calories, one bag is fine. Two bags liao you're at 540 calories for a snack.
What actually swings the maths hard is which version you pick. Losong, the boiled or steamed version without frying, comes in at around 195 calories per serving because there's zero oil absorption. That's 75 calories less for the same amount of food, same fish, same sago base. The thin crispy sliced version (keropok lekor nipis) goes the other direction, hitting about 380 calories because the surface area is huge and it soaks up oil like a sponge. And if you're dipping in that sweet chilli sauce, add another 30 to 50 calories easy depending on how generous you are. Practical tip: ask for losong if the stall has it, eat one bag with a proper meal instead of as a standalone snack, and skip the second bag.