Which food has less impact on blood sugar?

SPRING MIX LETTUCE (GREEN LEAF LETTUCE, SPRING MIX [MAY CONTAIN SOME OR ALL OF THE FOLLOWING BABY WHOLE LEAF VARIETIES: GREEN LEAF, MIZUNA, GREEN ROMAINE, TANGO, GREEK OAK, GREEN CHARD, BABY SPINACH, ARUGULA, FRISEE, TATSOI, MACHE, RED CHARD, RED LEAF, LOLLA ROSA, RED ROMAINE, RED MUSTARD, RADICCHIO, RED OAK, BEET TOPS], CARROTS), LITE BLUE CHEESE DRESSING (BUTTERMILK [CULTURED PASTEURIZED SKIM MILK AND MILK, SODIUM CITRATE AND SALT], WATER, SOYBEAN OIL, BLUE CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES, NATAMYCIN AS AN ANTI-MYCOTIC AGENT], BUTTERMILK SOLIDS, CONTAINS LESS THAN 2% OF SALT, DISTILLED VINEGAR, EGG YOLKS, XANTHAN GUM, LACTIC ACID, SPICE, DEHYDRATED GARLIC, NATURAL FLAVOR [INCLUDES MILK]), CHICKEN BREAST MEAT (CHICKEN BREAST WITH RIB MEAT, WATER, CULTURED SUGAR AND VINEGAR, POTATO STARCH, SEA SALT, NATURAL FLAVORINGS), EGG, GRAPE TOMATO, BACON (CURED WITH: WATER, SALT, SUGAR, SODIUM PHOSPHATE, SODIUM ERYTHORBATE, SODIUM NITRITE, MAY CONTAIN SMOKE FLAVORING), FANCY SHRED MILD CHEDDAR & MONTEREY JACK CHEESE (CHEDDAR CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES, ANNATTO {VEGETABLE COLOR}], MONTEREY JACK CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES], POTATO STARCH AND POWDERED CELLULOSE [TO PREVENT CAKING], NATAMYCIN [MOLD INHIBITOR]), BLACK OLIVES (SALT FERROUS GLUCONATE).