If you have been trying to gain muscle for any length of time, you have probably figured out that training is only half of the equation. To gain quality muscular weight, you must take in more calories than you burn, with a significant portion of them coming from protein. This large food intake can be a huge drain on your wallet, especially when you already have monthly gym dues on your list of bodybuilding expenses. Here are 10, nutrient-dense, muscle-building foods that will help you get the protein and calories you need without breaking the bank.

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1. Eggs

With 5-6 grams of both protein and fat in each little egg, and with prices as low as a dollar per dozen in some grocery stores, this is a bodybuilding food that cannot be beat. If you're in serious need of calories to grow, you would do well to eat the whole egg. The yolk contains healthy mono- and polyunsaturated fats, half of the egg's protein, and several essential amino acids and vitamins that you will not find in the white.