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The varying nutritional counts of the cooked entries is, unfortunately, just one of the hazards of eating out. How do you really know what's in the dish unless you know the recipe and how much you ate of it? There are probably a lot of different carb counts for Larb depending on the composition of the ingredients. Since you have to guess, I would distrust ones that seem excessively high or excessively low and use an entry that seems consistent with the others, if the Larb you ate seemed consistent with what you're used to.
To see what the nutritional count is before adding it, enter the food in the search field, click search, highlight the one you want to look at, and then click the "See Full Nutritional Value" button under the word Add.
"I owe everything you see here to spaghetti."
| current weight: 173.3