Which food has less impact on blood sugar?

GREEN LEAF LETTUCE, ROMANO CAESAR DRESSING (VEGETABLE OIL [CANOLA AND/OR SOYBEAN OIL], WATER, ROMANO CHEESE [MILK, CULTURE, SALT, ENZYMES], EGG YOLK, LESS THAN 2% OF ANCHOVY PASTE [ANCHOVIES, SALT, WATER], DISTILLED VINEGAR, DRIED GARLIC, MUSTARD [DISTILLED VINEGAR, WATER, MUSTARD SEED], SALT, SUGAR, LEMON JUICE CONCENTRATE, GROUND MUSTARD, SPICE, XANTHAN GUM), CAESAR CROUTONS (WHEAT FLOUR, CANOLA OIL AND/OR SUNFLOWER OIL, SUGAR, SALT, YEAST, WHEY, MALTODEXTRIN, GARLIC POWDER, LACTIC ACID POWDER [LACTIC ACID, CALCIUM LACTATE], DEHYDRATED PARSLEY, CORN STARCH), PARMESAN CHEESE (PARMESAN CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], POWDERED CELLULOSE [TO PREVENT CAKING]), SEASONED CROUTONS (ENRICHED FLOUR [WHEAT FLOUR, MALTED BARLEY, NIACIN, IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID], SUNFLOWER OIL [SUNFLOWER OIL, ROSEMARY EXTRACT {TO MAINTAIN FRESHNESS}], CHEDDAR CHEESE GARLIC SEASONING [CHEESE POWDER (CHEDDAR CHEESE (MILK, SALT, CULTURES, ENZYMES), WHEY}, SALT, GARLIC POWDER, YEAST EXTRACT, NATURAL FLAVORS, CITRIC ACID, PARSLEY, SPICE, MALTODEXTRIN], WHEAT FLAKES, PALM OIL, SEA SALT, CANE SUGAR, YEAST)