A fat bomb is a small, high-fat snack associated with ketogenic and other low-carbohydrate eating patterns. Recipes often combine ingredients such as nut butter, coconut oil, butter, cream cheese, or cocoa; sweet and savory versions exist.
The name describes a style of snack rather than a fixed nutritional standard. Carbohydrate content, portion size, and allergens depend on the ingredients. Eating a particular snack does not by itself guarantee ketosis or a health benefit.