Which food has less impact on blood sugar?

MASHED POTATOES: REHYDRATED POTATO FLAKES AND GRANULES (WATER, POTATOES, MONO- AND DIGLYCERIDES, CITRIC ACID, DISODIUM DIHYDROGEN PYROPHOSPHATE, BHT, SODIUM BISULFITE), WATER, CREAM, MARGARINE (SOYBEAN OIL, WATER, SALT, HYDROGENATED SOYBEAN OIL, MONOGLYCERIDES, SODIUM BENZOATE, SOY LECITHIN, MEDIUM CHAIN TRIGLYCERIDES, VITAMIN A PALMITATE, BETA CAROTENE (COLOR), VITAMIN D3 (CHOLECALCIFEROL), NATURAL FLAVOR), SOYBEAN OIL, SUGAR, SALT, NONFAT DRY MILK, MONOSODIUM GLUTAMATE, XANTHAN GUM, GUAR GUM, FLAVORING), GRAVY: WATER, BEEF, MODIFIED CORN STARCH, TOMATO PASTE, WHEAT FLOUR, SALT, SUGAR, SOYBEAN OIL, MONOSODIUM GLUTAMATE, ONION POWDER, GARLIC POWDER, CARAMEL COLOR, GARLIC JUICE, HYDROLYZED SOY PROTEIN, FLAVORINGS. MEAT LOAF PATTY: GROUND CHICKEN, PORK, BEEF, WATER, BREADER (ENRICHED BLEACHED WHEAT FLOUR [BLEACHED WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], DURUM FLOUR, LEAVENING [SODIUM BICARBONATE, SODIUM ACID PYROPHOSPHATE], YEAST), ONIONS, TEXTURED SOY PROTEIN CONCENTRATE (SOY PROTEIN CONCENTRATE, CARAMEL COLOR), TOMATO CONCENTRATE, SOY PROTEIN CONCENTRATE, SALT, FLAVORINGS, CARAMEL COLOR, POTASSIUM SALT, HIGH FRUCTOSE CORN SYRUP, DISTILLED VINEGAR, POTASSIUM PHOSPHATES, CORN SYRUP, SOY LECITHIN.