Which food has less impact on blood sugar?

ROASTED BREAST OF TURKEY COATED WITH SEASONING (INGREDIENTS: TURKEY BREAST, WATER, CONTAINS LESS THAN ONE AND ONE HALF PERCENT OF SALT, SUGAR, SODIUM PHOSPHATE AND DEXTROSE, COATED WITH: DEXTROSE, SALT, HONEY SOLIDS [REFINERY SYRUP, HONEY], PAPRIKA, SPICES, ONION, NATURAL FLAVORS, EXTRACTIVES OF PAPRIKA AND TURMERIC), ITALIAN SUB ROLL (BLEACHED ENRICHED FLOUR [WHEAT FLOUR, VITAMIN A PALMITATE, CALCIUM, NIACIN, IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, SALT, DEXTROSE [SUGAR], MARGARINE [PALM OIL, LIQUID SOYBEAN OIL, WATER, SALT], YEAST, DOUGH CONDITIONER [WHEY, CORN FLOUR, MONOCALCIUM PHOSPHATE, L-CYSTEINE HYDROCHLORIDE, POTASSIUM BROMATE], AND 2% OR LESS OF THE FOLLOWING: GUAR GUM, POTASSIUM IODATE, CALCIUM SULFATE, AMMONIUM SULFATE, ASCORBIC ACID, HYDROLYZED WHEAT GLUTEN, DIACETYL TARTARIC ACID ESTERS OF MONO AND DIGLYCERIDES [DATEM], AZODICARBONAMIDE [ADA]), AMERICAN CHEESE (AMERICAN CHEESE [MILK, SALT, CHEESE CULTURE, ENZYMES], WATER, CREAM, SODIUM PHOSPHATES, SALT), TOMATO, GREEN LEAF LETTUCE.