Essential amino acids are critical for building protein. For more information, see the Wikipedia page on them.
100g of Boston Cream Donuts with Custard Filling & Decadent Coating with Festive Leaf Sprinkles contains 4g of protein, which is about the same as 0.7 eggs, 0.1 chicken breasts, or 0.3 cups (78g) of black beans.
Profile of Carbohydrates in Item
Fraction of Carbs by Type
* Other includes oligosaccharides and other polysaccharides.