Trail mix is a type of snack mix, typically a combination of granola, dried fruit, nuts, and sometimes candy, developed as a food to be taken along on hikes. Trail mix is a popular snack food for hikes, because it is lightweight, easy to store, and nutritious, providing a quick energy boost from the carbohydrates in the dried fruit or granola, and sustained energy from fat in nuts.

Granola is a food consisting of rolled oats, nuts, seeds, honey or other sweeteners such as brown sugar, and sometimes puffed rice, that is usually baked until crisp, toasted and golden brown. The mixture is stirred while baking to avoid burning and to maintain a loose breakfast cereal consistency. Dried fruit, such as raisins and dates, and confections such as chocolate are sometimes added. Granola is often eaten in combination with yogurt, honey, fresh fruit, milk or other forms of cereal. It also serves as a topping for various pastries, desserts or ice cream. Muesli is similar to granola, except that it is traditionally neither sweetened nor baked.