Which food has less impact on blood sugar?

TUNA SALAD (TUNA [YELLOWFIN TUNA, WATER, VEGETABLE BROTH {CARROT AND PEA EXTRACTS}, SALT], MAYONNAISE [SOYBEAN OIL, WATER, EGG YOLKS, DISTILLED VINEGAR, CONTAINS LESS THAN 2% OF SUGAR, SALT, CALCIUM DISODIUM EDTA ADDED TO PROTECT FLAVOR, DEHYDRATED GARLIC, DEHYDRATED ONION], CELERY, PANKO BREAD CRUMBS [WHEAT FLOUR, SUGAR, YEAST, SALT], CULTURED SUGAR, GRANULATED CANE SUGR, LEMON AND PEPPER SEASONING [SALT, BLACK PEPPER, CITRIC ACID, ONION, SUGAR, GARLIC, CALCIUM STEARATE, SILICON DIOXIDE, AND CALCIUM SILICATE {TO MAKE FREE FLOWING}, CELERY SEED, LEMON OIL & FD&C YELLOW NO. 5 LAKE]), ROLL (ENRICHED WHEAT FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, DOUGH CONDITIONER [SALT, SUGAR, DEXTROSE, SOYBEAN OIL, CALCIUM STEAROYL LACTYLATE {CSL}, MALT POWDER {DRIED CORN SYRUP, BARLEY MALT EXTRACT}, DIACETYL TARTARIC ACID ESTERS OF MONO-DIGLYCERIDES {DATEM}, MONO- AND DIGLYCERIDES, ASCORBIC ACID {VITAMIN C} {USED AS A DOUGH CONDITIONER}, POTASSIUM IODATE, ETHOXYLATED MONO-AND DIGLYCERIDES, CALCIUM SULFATE, WHEAT STARCH, ENZYMES], CONTAINS LESS THAN 2% OF: YEAST, WHEAT GLUTEN, SOYBEAN OIL, NATURAL SESAME SEEDS, DEHYDRATED ONION, DEHYDRATED GARLIC, CALCIUM PROPIONATE [PRESERVATIVE], WHITE DISTILLED VINEGAR, HYDRATED DISTILLED MONOGLYCERIDE WATER, MONOGLYCERIDES, PRESERVATIVES {PROPIONIC ACID AND PHOSPHORIC ACID}], POPPY SEEDS, SALT [SALT, FULLY HYDROGENATED VEGETABLE OIL], SORBIC ACID [SORBIC ACID {PRESERNATIVE}, FULLY HYDROGENATED SOYBEAN OIL]), GREEN LEAF LETTUCE.