Starting your day with muffins or pastries is akin to eating cake for breakfast. Even muffins branded as "healthy" can be sugar-heavy, especially those with chocolate or scant fruit. Enjoy fruit-based muffins sparingly, and note that most pastries are brimming with saturated fats. Savory muffins with veggies and less sugar might be a wiser pick, but pastries should remain an occasional indulgence.