10 Best Mass Gainers 2026 in the United States

The NAKED Mass Natural Weight Gainer is a solid choice for those aiming to increase muscle mass and total weight with clean, simple nutrition. Each serving packs a hefty 1,250 calories, which is excellent for serious bulking. It provides 50 grams of protein from a blend of fast-absorbing whey and slow-digesting casein, supporting muscle growth over time. The carbohydrate content is very high at 252 grams per serving, sourced mainly from organic tapioca maltodextrin, a gluten-free and cleaner alternative to typical wheat-based carbs. Fat content is low, which helps keep calories focused on carbs and protein. The product is free of artificial sweeteners, flavors, colors, gluten, soy, and GMOs, appealing to those wanting a natural supplement without additives.

The powder is unflavored, which means you may need to mix it with other ingredients to improve taste and texture. Mixability is generally good since it contains only three ingredients, but blending smoothly might require some effort due to the lack of flavor enhancers. It does not include added digestive enzymes, which could be a consideration for those who prefer them to assist with digestion of large serving sizes.

This mass gainer suits people who prioritize clean, allergen-free ingredients and want a powerful calorie and protein boost without extras. New users of mass gainers might find the unflavored powder less enjoyable, but it offers great flexibility for customized shakes and recipes.

Naked Mass is a natural weight gainer protein powder designed to help individuals increase their calorie and protein intake efficiently. With 1,250 calories per serving, it is ideal for those struggling to gain weight. Each serving contains 50g of protein and 252g of carbohydrates, highlighting its high-calorie content essential for bulking up. The protein blend includes fast-release whey and slow-digesting casein, offering a sustained protein release that supports muscle synthesis over time.

The product is free from artificial sweeteners, flavors, and colors, making it a clean option with only three ingredients: Naked Whey, Naked Casein, and organic maltodextrin from tapioca. It's also non-GMO, gluten-free, and soy-free, catering to individuals with dietary restrictions. Additionally, it includes 11.5g of BCAAs per serving, which are crucial for muscle recovery and growth. Its unflavored nature makes it versatile for mixing into various shakes and recipes without altering taste.

The lack of added digestive enzymes might be a downside for those who experience digestive issues with high-calorie supplements. Additionally, with only 11 servings per 8-pound container, it may not be the most economical option for long-term use. Despite these drawbacks, Naked Mass stands out for its clean ingredient profile and high nutritional value, making it suitable for individuals focused on weight gain and muscle building.

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.