What, if any, effect does eating raw tomatoes fresh from the garden have on blood glucose levels?
A medium tomato, which weighs about 4 ounces, contains just 22 calories and 5 grams of carbohydrate. A “free” food (meaning, a food that you don’t have to “count” in your eating plan) is one that has less than 20 calories and less than 5 grams of carbohydrate per serving. So, a tomato is pretty much a free food. Of course, if you eat TOO many tomatoes at one time (which is easy to do when tomatoes are in season), your blood glucose level may go up. I’d suggest aiming for no more than one tomato at a meal or a snack.