10 Best Mass Gainers 2025 in the United States

Optimum Nutrition Serious Mass is a high-calorie weight gainer designed to help individuals who need to pack on mass. It boasts over 1,200 calories per 2-scoop serving, making it ideal for those struggling to meet their caloric needs through regular meals. Each serving also includes 50 grams of blended protein, which supports muscle growth and recovery, along with over 250 grams of carbohydrates, essential for energy and replenishment after workouts.

The inclusion of over 20 vitamins and minerals, such as Vitamin C and Zinc, provides added immune support, which is a nice bonus for overall health. Additionally, the product offers versatility, as it can be blended with various other calorie-dense foods to further boost caloric intake. The flavor, chocolate, is popular and generally well-received for its taste and mixability.

The product comes in a large 12-pound container, which might be bulky for some users. It provides 16 servings per container, which is reasonable but might require frequent repurchasing for those using it daily. Another point to consider is that while it is caffeine-free, it doesn't include digestive enzymes, which might make it harder to digest for some people. In summary, Optimum Nutrition Serious Mass is a solid choice for those seeking a calorie-dense mass gainer with good protein and carbohydrate content, but it could benefit from the addition of digestive enzymes for better digestion, and the large container size could be cumbersome.

Dymatize Super Mass Gainer Protein Powder is designed to help those who struggle to gain weight and muscle mass. With a substantial 1280 calories per serving, this product is well-suited for those who need a high-calorie intake to pack on mass. It offers a significant 52 grams of protein, consisting of a blend of fast and slow-digesting proteins, which helps fuel muscles throughout the day and supports muscle recovery. The inclusion of 10.7 grams of BCAAs, including 5.1 grams of Leucine, further aids in muscle protein synthesis.

A notable 245 grams of carbohydrates per serving ensures sufficient energy for intense workouts and recovery periods. Additionally, the presence of 14 vitamins and minerals supports overall health and muscle recovery. The product is gluten-free, making it accessible for those with gluten sensitivities. It is available in a rich chocolate flavor, which is reported to mix easily and taste delicious, enhancing the user experience.

However, the high caloric and carbohydrate content may not be suitable for those looking to manage their weight or limit their carb intake. With only 8 servings per container, some users might find it less economical depending on their usage frequency. Nonetheless, Dymatize Super Mass Gainer is a powerful option for individuals aiming to increase their mass effectively.

The NAKED Chocolate Mass Gainer is designed for individuals looking to bulk up and increase their calorie intake efficiently. With a substantial 1,360 calories per serving, it is ideal for those who struggle to consume enough calories through regular meals. The product boasts an impressive 50 grams of protein and 251 grams of carbohydrates per serving, which are essential for muscle growth and recovery. Additionally, it includes 11.6 grams of BCAAs, which support muscle synthesis and reduce fatigue during workouts.

The inclusion of only five natural ingredients—Naked Whey, Naked Casein, Organic Maltodextrin, Organic Coconut Sugar, and Organic Raw Cacao—ensures that the mass gainer is free from artificial sweeteners, flavors, and colors, making it a clean option for health-conscious users. Being gluten-free, soy-free, and GMO-free further adds to its appeal, especially for those with dietary restrictions. The product's versatility in making shakes, smoothies, and various recipes is a bonus for those who like to experiment with their nutrition.

However, some potential drawbacks include the relatively high sugar content (5 grams per serving) and the use of maltodextrin, which may not be ideal for everyone. Additionally, while the flavor and mixability are generally praised, taste preferences can vary. In summary, this mass gainer is a potent option for serious weight gainers who prioritize natural ingredients and high caloric intake.