Even a Low-Fat Blueberry Muffin from Starbucks will set you back 430 calories and 2.5 grams of fat, not to mention 57 grams of sugar. That's hardly a healthy meal if you ask us. There are some exceptions to the rules. Smart Ones has a Chocolate Chocolate Chip Muffin with just 190 calories, 2 grams of fat and 14 grams of sugar. Jennie Craig's Blueberry Muffin will only set you back 200 calories and 2.5 grams of fat. To stay on the safe side, check the nutritional values before you sink your teeth into this questionable breakfast staple. Make your own batch of muffins from healthier recipes. There are actually mixes that don't call for oils and all of those other unhealthy ingredients. And always remember not to supersize it. If you're considering consuming a whopper of a muffin, you'll likely get a heaping helping of fat and calories along with it.